PB Index General

American Avocet	American Avocet, Erie County	032	57
American Bittern	Banding Records from Pennsylvania - Part 4 - Waders	073	84
American Bittern	Behavior of an American Bittern in Response to a Fox	094	191
American Bittern	First Documented Nesting Record for American Bittern (Botaurus lentginosus) for Sullivan County, Pennsylvania	113	145
American Crow	Behavioral Observations - American Crow	074	122
American Golden-Plover	Terns of Hurricane Irene, and other fallout	254	212
American Golden-Plover	Plover Palooza!	344	213
American Goldfinch	An unusual American Goldfinch nest in a corn plant	241	33
American Kestrel	American Kestrel Nesting Box Project in Warren County	034	132
American Kestrel	Breeding Success of American Kestrels Nesting in Boxes in Eastern Pennsylvania, 1987-1994	113	138
American Kestrel	Nestbox use by American Kestrels and European Starlings in Eastern Pennsylvania	143	150
American Kestrel	Reproductive Success of American Kestrels Using Nest Boxes in Eastern Pennsylvania, 1992-2005	203	112
American Kestrel	Banding Records from Pennsylvania - Raptors	062	48
American Kestrel	Pennsylvania's Importance to American Kestrels: A Regional Context	292	76
American Kestrel	Summary of an American Kestrel Nest Box Program in New Jersey and Pennsylvania	362	68
American Kestrel	Pennsylvania's American Kestrel nest box numbers from 2021	354	226
American Kestrel	American Kestrel nest box numbers from 2020	344	222
American Kestrel	American Kestrel Nest Box Projects in Pennsylvania - Results from the 2018 season	331	25
American Kestrel	American Kestrel nest box numbers from 2019	334	222
American Oystercatcher	First Documented Record of American Oystercatcher in Pennsylvania, Carbon Co.	072	51
American Tree Sparrow	American Tree Sparrows in Pennsylvania (Part 1), Speculations on a 15-year decline, 1973-1987	033	90
American Tree Sparrow	American Tree Sparrows in Pennsylvania (Part 2), Large Fluctuations add another Mystery	034	122
American White Pelican	Unusual Pelican in Beaver County?, An	112	55
American Woodcock	American Woodcock Habitat Survey	093	123
American Woodcock	Behavior Notes, Am. Woodcock Carrying Young	082	96
Ancient Murrelet	First Pennsylvania Record of Ancient Murrelet, Berks County	064	143
Ancient Murrelet	Alcid Records in Pennsylvania	134	172
Anhinga	Anhinga Church Farm School Pond, Exton, Chester County	202	64
Anhinga	Anhinga, Delaware County	122	62
Anhinga	Anhinga, Montgomery County	102	93
Anna's Hummingbird	Documentation of Anna's Hummingbird in Berks County	252	81
Arctic Tern	Arctic Tern, Berks County	122	62
Arctic Tern	Arctic Tern, Bucks County	102	93
Arctic Tern	Arctic Terns in Carbon County	032	56
Arctic Tern	From the files of PORC: Arctic Tern identification	223	152
Arctic Tern	Arctic Terns at Dashields Dam, Allegheny County	242	74
Arctic Tern	Terns of Hurricane Irene, and other fallout	254	212
Arctic Tern	Arctic Terns in Elk County	262	90
Ash-throated Flycatcher	Ash-throated Flycatcher, Northampton County	114	224
Ash-throated Flycatcher	Ash-throated Flycatcher in Lebanon County	234	188
Atlantic Puffin	Alcid Records in Pennsylvania	134	172
Bahama Woodstar	Bahama Woodstar in Lancaster County	272	78
Baird’s Sandpiper	The Baird's Sandpiper Flight of 2010	244	190
Bald Eagle	Recent History and Current Status of Nesting Bald Eagles in Pennsylvania	061	2
Bald Eagle	Banding Records from Pennsylvania - Raptors	062	48
Bald Eagle	Great Blue Heron and Bald Eagle Nesting Update	102	58
Band-rumped Storm-Petrel	Band-rumped Storm-Petrel (Oceanodroma castro) Found on the Shore of Lake Erie in Pennsylvania, A	123	127
Band-rumped Storm-petrel	Band-rumped Storm-petrel Bald Eagle State Park, Centre County, Pennsylvania, 9/20/03	174	265
Barn Swallow	Leucistic Barn Swallows	244	189
Barnacle Goose	Acceptance of Barnacle Goose to the Official List of the Birds of Pennsylvania	224	194
Barred Owl	Barred Owl Note	123	132
Barred Owl	Barred Owl Note	121	9
Bicknell's Thrush	Documentation of Bicknell's Thrush for P.O.R.C.	102	47
Black Guilemot	Alcid Records in Pennsylvania	134	172
Black Guillemot	Black Guillemot (Berks)	134	197
Black Rail	Black Rail in Berks County	132	80
Black Rail	Black Rail Lebanon County	082	89
Black Skimmer	Black Skimmer - Delaware County	184	219
Black Vulture	Banding Records from Pennsylvania - Raptors	062	48
Black Vulture	Black Vulture (Coragyps atratus) Nesting in Lebanon County	203	127
Black-and-white Warbler	Black-and-white Warbler Nest, Venango County	032	51
Black-backed Woodpecker	Black-backed Woodpecker, Pike County	152	88
Black-bellied Plover	Terns of Hurricane Irene, and other fallout	254	212
Black-bellied Whistling-Duck	First Documented Record of Black-bellied Whistling-Ducks for Pennsylvania, Indiana & Westmoreland Cos.	072	50
Black-billed Cuckoo	Note on Cuckoos in Butler County, A	113	174
Black-capped Chickadee	Black-capped Chickadee Irruptions in Pennsylvania.	173	174
Black-capped Chickadee	Sorting out the Chickadees in Southwestern Pennsylvania	014	105
Black-capped Petrel	Black-capped Petrel, Butler and Somerset Counties	103	152
Black-capped Petrel	Introduction to the Black-capped Petrel, An	041	2
Black-capped Petrel	Rare Birds in Venango County - Black-capped Petrel	034	124
Black-crowned Night-Heron	Banding Records from Pennsylvania - Part 4 - Waders	073	84
Black-headed Grosbeak	Black-headed Grosbeak Lancaster County	171	36
Black-headed Gull	Curious History of Black-headed Gull in Southwestern Pennsylvania, The	341	2
Black-legged Kittiwake	Black-legged Kittiwake, Montour County	074	135
Black-legged Kittiwake	Second Record of Black-legged Kittiwake for Berks County	051	23
Black-throated Gray Warbler	Black-throated Gray Warbler Berks County	111	20
Black-throated Gray Warbler	Black-throated Gray Warbler in Cumberland County	234	188
Blackpoll Warbler	Discovery of a Blackpoll Warbler Nest	083	128
Blue Grosbeak	Blue Grosbeak, Fourth County Record for Northampton County	053	120
Blue Jay	Banding Records from Pennsylvania - Part 6 - Corvids	171	41
Blue-headed Vireo	Banding Records from Pennsylvania Part Two - Vireos	063	101
Blue-winged Teal	Hybrid Cinnamon x Blue-winged Teal, Washington County	222	95
Bohemian Waxwing	Bohemian Waxwing, Allegheny and Erie Counties	074	134
Bonaparte's Gull	Bonaparte's Gull Migration in Southwestern Pennsylvania - Understanding "The April 10 Effect"	202	67
Brant	Brant Flight -Weather Related Observations in Erie, Crawford, and Somerset Counties	104	231
Brewer's Blackbird	Brewer's Blackbird, Erie County	044	142
Brewer's Blackbird	Brewer's Blackbird, Huntingdon County	051	25
Brewer's Blackbird	Brewer's Blackbird, Northampton County	044	143
Brewster's Warbler	Identification of the Burket Triple HybridBrewster's/Chestnut-sided Warbler, The	334	223
Bridled Tern	Terns of Hurricane Irene, and other fallout	254	212
Broad-winged Hawk	Dark-morph Broad-winged Hawk, Delaware County	093	136
Broad-winged Hawk	Record Broad-winged Hawk Flight Over Philadelphia	073	93
Broad-winged Hawk	Banding Records from Pennsylvania - Raptors	062	48
Brown-headed Cowbird	An Accounting of Large Starling and Blackbird Flocks in Pennsylvania and Regionally	301	2
Brown-headed Cowbird	RESEARCH NOTE: Photographic Evidence of Brood Parasitism of Yellow-throated Warbler by Brown-headed Cowbird in Pennsylvania	372	82
Brown-headed Cowbird	Cowbird Nest Parasitism is no Problem for Hooded Warblers	364	207
Bullock's Oriole	Bullock's Oriole (Icterus bullockii) in Juniata County	214	166
Bullock's Oriole	Bullock's Oriole, Lancaster County	141	18
Bullock’s Oriole	Bullock's Oriole in Montgomery County	251	29
California Gull	Pennsylvania's First California Gull Erie County. .	163	147
Calliope Hummingbird	Pennsylvania's First Calliope Hummingbird Montgomery County	163	146
Canada Jay	Historical Records of Canada Jay (Perisoreus canadensis) in Pennsylvania	353	157
Carolina Chickadee	Sorting out the Chickadees in Southwestern Pennsylvania	014	105
Carolina Chickadee	Prolonged Incubation of a hybrid-zone chickadee nest	233	149
Carolina Wren	Carolina Wens at Pittsburgh, 1970-1988	031	3
Carolina Wren	Carolina Wrens in Pennsylvania	222	86
Caspian Tern	Terns of Hurricane Irene, and other fallout	254	212
Cattle Egret	Banding Records from Pennsylvania - Part 4 - Waders	073	84
Cave Swallow	Cave Swallow - Chester County	184	222
Cave Swallow	Cave Swallow - First for Philadelphia County	224	215
Cave Swallow	Cave Swallow (Mercer)	134	198
Cave Swallow	Cave Swallow (Petrochelidon fulva) at Roderick Wildlife Reserve, Erie County, PA 13 Nov 2005	194	194
Cave Swallow	Cave Swallow Cumberland County	163	152
Chimney Swift	Roost Exiting of Chimney Swifts	124	172
Cinnamon Teal	Cinnamon Teal, Lancaster County	084	218
Cinnamon Teal	Hybrid Cinnamon x Blue-winged Teal, Washington County	222	95
Clapper Rail	Another Unique Rail Specimen from Southwestern Pennsylvania: a Clapper Rail	031	14
Clapper Rail	Clapper Rail in Pa.	082	88
Clay-colored Sparrow	Clay-colored Sparrow, Erie County	052	71
Clay-colored Sparrow	Documentation of Clay-colored Sparrow Breeding at Piney Tract, Clarion County	132	63
Cliff Swallow	Cliff Swallows Use Artificial Nests at Center Bridge, Bucks County	052	55
Cliff Swallow	Swallow and Cuckoo Notes	133	129
Cliff Swallow	Swallow Note	123	132
Cliff Swallow	Swallow Notes	121	9
Cliff Swallow	Update on the Ceramic Cliff Swallow Nests at Center Bridge	112	59
Common Black-headed Gull	Common Black-headed Gull in Erie County	024	130
Common Black-headed Gull	Common Black-headed Gull in Erie County	032	57
Common Crow	Banding Records from Pennsylvania - Part 6 - Corvids	171	41
Common Goldeneye	Some Variability in the Extent of Bill Color in Female Common Goldeneye: A Cautionary Note	062	56
Common Grackle	An Accounting of Large Starling and Blackbird Flocks in Pennsylvania and Regionally	301	2
Common Loon	Banding Records from Pennsylvania - Part 5 - Loons, Grebes, and Cormorants	163	157
Common Nighthawk	Summary of Common Nighthawk Watches in Pennsylvania, 1999, A	141	11
Common Nighthawk	Common Nighthawk Nest in Verona, Allegheny, Summer 2020, A	343	149
Common Raven	First Confirmed Nesting of Common Raven in the Pocono Mountains, Monroe Co.	072	53
Common Raven	Raven Nest Discovered in York County	102	45
Common Raven	Banding Records from Pennsylvania - Part 6 - Corvids	171	41
Common Raven	Common Raven Nest in Cumberland County	152	90
Common Redpoll	Northern Finches and the Red-breasted Nuthatch in the Pennsylvania Christmas Bird Count	114	187
Common Shelduck	Strangers from Afar: Two Un-"twitch"able Additions to the PA Avifauna	341	6
Common Tern	Common Tern recolonization attempt at Presque Isle - an update	293	152
Common Tern	Attempted Nesting of Three Species of Laridae at Presque Isle State Park	092	79
Common Tern	Terns of Hurricane Irene, and other fallout	254	212
Common Tern	Notes on Common Terns and their recent attempt to nest at Presque Isle	263	138
Cooper's Hawk	Cooper's Hawk Utilizing Carrion	084	215
Cooper's Hawk	Cooper's Hawk, banded in PA, recovered in New Brunswick	141	10
Cooper's Hawk	Return of the Cooper's Hawk, The	072	52
Cooper's Hawk	Banding Records from Pennsylvania - Raptors	062	48
Cooper's Hawk	Pennsylvania CBC counts of Sharp-shinned and Cooper's Hawks	113	134
Corn Crake	Strangers from Afar: Two Un-"twitch"able Additions to the PA Avifauna	341	6
Cory's Shearwater	Cory's Shearwater, Lycoming County	103	152
Cory's Shearwater	Cory's Subspecies Determined	104	206
Curlew Sandpiper	Second documented record of Curlew Sandpiper in Pennsylvania	182	74
Dark-eyed Junco	Wintering Juncos	181	5
Dickcissel	Breeding Dickcissel Behavior	083	139
Dickcissel	Dickcissels in Lawrence & Venango Counties	082	90
Dickcissel	Great Dickcissel Flyway, The	083	146
Dickcissel	Occurrence of Dickcissels in Western Pennsylvania during the 1988 Nesting Season--Its Possible Bearing on the Species' Unusual History in Eastern North America	023	83
Dickcissel	Summary of the 2012 Dickcissel Invasion	273	146
Double-crested Cormorant	First Double-crested Cormorant Nesting in Pennsylvania	103	151
Double-crested Cormorant	Banding Records from Pennsylvania - Part 5 - Loons, Grebes, and Cormorants	163	157
Dovekie	Alcid Records in Pennsylvania	134	172
Dowitcher	Difficult Dowitcher in Beaver County, A	204	170
Downy Woodpecker	Woodpecker's Badly Deformed Bill Is an Avian Mystery, A	324	197
Eastern Bluebird	Eastern Bluebird Nesting Success in Parkway Systems of Large Municipalities	042	45
Eastern Kingbird	Banding Records from Pennsylvania - Part 3 - Flycatchers	072	46
Eastern Phoebe	Arrival Dates of Eastern Phoebe in Pennsylvania, 1987 - 2007	222	96
Eastern Phoebe	Early Arrival Dates for Eastern Phoebe 1987-1990	041	17
Eastern Phoebe	Banding Records from Pennsylvania - Part 3 - Flycatchers	072	46
Eastern Whip-poor-will	The Nightjar Survey Network: A network of citizen scientists compiling data on declining, cryptic birds	333	166
Eastern Whip-poor-will	Status of the Common Nighthawk (Chordeiles minor) as a Nesting Species in Pennsylvania with an Emphasis on Western Pennsylvania	333	162
Eastern Wood Pewee	Banding Records from Pennsylvania - Part 3 - Flycatchers	072	46
Empidonax sp.	Mystery Empid	371	24
Eurasian Collared Dove	Eurasian Collared-Dove, Crawford County	103	155
European Robin	European Robin (Erithacus rubecula) in Bucks County	291	29
European Starling	An Accounting of Large Starling and Blackbird Flocks in Pennsylvania and Regionally	301	2
Evening Grosbeak	First Confirmed Evening Grosbeak Nest in Pa.	083	133
Evening Grosbeak	Northern Finches and the Red-breasted Nuthatch in the Pennsylvania Christmas Bird Count	114	187
Field Sparrow	Pale Form of Field Sparrow	112	60
Fork-tailed Flycatcher	Fork-tailed Flycatcher in Pennsylvania, A	203	128
Forster's Tern	First Winter Record of Forster's Tern in Pennsylvania, Erie County	051	24
Forster's Tern	Terns of Hurricane Irene, and other fallout	254	212
Fox Sparrow	Fox Sparrow Fallout Due To a Late Winter Storm	212	78
Franklin's Gull	Franklin's Gull, Lancaster County	044	139
Frigatebird sp.	Terns of Hurricane Irene, and other fallout	254	212
Glaucous	Occurrence of Glaucous Gull and Iceland Gull in Berks County, The	351	11
Glaucous Gull	Casper and His Ghostly Friends Glaucous and Iceland Gulls in Northampton County	131	16
Glaucous Gull	Two in a row: Pittsburgh's winters of gulls, 2014 and 2015	291	4
Glaucous-winged Gull	Glaucous-winged Gull in Pennsylvania, A	361	18
Glossy Ibis	Glossy Ibis in Dauphin County	042	50
Glossy Ibis	Summary of the Distribution of Ibises in Pennsylvania	054	150
Golden Eagle	Banding Records from Pennsylvania - Raptors	062	48
Grasshopper Sparrow	Spring Migration Timing of Grasshopper Sparrows in Central Pennsylvania as Estimated from eBird Records and Two Nocturnal Flight Call Stations	332	89
Gray Catbird	Unusually Large Gray Catbird Fault Bar	333	171
Gray Kingbird	First Pennsylvania Record of Gray Kingbird	191	8
Gray-cheeked Thrush	Large Catharus Thrush Migration in Hamburg, Berks Co., Pa.	142	99
Great Black-backed Gull	First Pennsylvania Breeding Record for Great Black-backed Gull - Tinicum Township, Delaware County	203	129
Great Blue Heron	Great Blue Heron and Bald Eagle Nesting Update	102	58
Great Blue Heron	Great Blue Heron Catches Snake in January	051	7
Great Blue Heron	Great Blue Heron Five-Year Statewide Survey Results, 2007-08	223	156
Great Blue Heron	Great Blue Heron Rookery on the Clarion River	092	66
Great Blue Heron	Great Blue Heron x Great Egret in Washington County	182	72
Great Blue Heron	Update on Great Blue Heronries in Lawrence County	081	12
Great Blue Heron	Banding Records from Pennsylvania - Part 4 - Waders	073	84
Great Cormorant	Great Cormorants at Martins Creek, Northampton County, First County Record	064	145
Great Crested Flycatcher	Banding Records from Pennsylvania - Part 3 - Flycatchers	072	46
Great Egret	Banding Records from Pennsylvania - Part 4 - Waders	073	84
Great Gray Owl	First Live Great Gray Owl in the 20th Century, Warren County	061	10
Great-black-backed Gull	Two in a row: Pittsburgh's winters of gulls, 2014 and 2015	291	4
Greater Shearwater	Greater Shearwater Puffinis gravis, Berks County, First Documented Record for Pennsylvania	133	126
Greater White-fronted Goose	Occurrence and Identification of Greater White-fronted Goose in Pennsylvania	204	164
Greater White-fronted Goose	Record Number of Greater White-fronted Geese in Pennsylvania	111	7
Greater White-fronted Goose	Greater White-fronted Goose Invasion of 2016, The	302	64
Green Heron	Banding Records from Pennsylvania - Part 4 - Waders	073	84
Green-tailed Towhee	Green-tailed Towhee in Bucks County	021	7
Green-tailed Towhee	Green-tailed Towhee Juniata County	163	154
Green-tailed Towhee	Green-tailed Towhee, Montgomery County	084	218
Gull-billed Tern	Gull-billed Tern, Lancaster County	083	147
Gull-billed Tern	Gull-billed Tern, Lancaster County	103	153
Gull-billed Tern	Terns of Hurricane Irene, and other fallout	254	212
Gulls	Record-breaking gulls in Erie County, March 2013	272	83
Gyrfalcon	An Exciting Afternoon with a Gyrfalcon in Northhampton County November 11, 2018	332	88
Hairy Woodpecker	The case of the dangling woodpecker	263	146
Hammond's Flycatcher	Hammond's Flycatcher, Northampton County	144	237
Harlequin Duck	Harlequin Duck in Huntingdon County	172	107
Harlequin Duck	Harlequin Duck, Erie County	032	57
Harlequin Duck	Ninth Record of Harlequin Duck, Erie County	051	20
Harris' Sparrow	Harris' Sparrow, Franklin County	034	127
Herring Gull	Herring Gull Attacks Red-breasted Merganser	044	144
Herring Gull	Possible Origin of Pa.'s 1st Nesting Record of Herring Gull	082	97
Herring Gull	Attempted Nesting of Three Species of Laridae at Presque Isle State Park	092	79
Herring Gull	Two in a row: Pittsburgh's winters of gulls, 2014 and 2015	291	4
Herring Gull	First Breeding Colony of Herring Gulls in PA	081	34
Hoary Redpoll	Hoary Redpoll, Lancaster County	081	18
Hoary Redpoll	Most Documented Record of a Hoary Redpoll in Pa., A	081	11
Hooded Merganser	First Documented Nesting Records of Hooded Merganser in Berks County, PA	142	68
Hooded Merganser	Note on Hooded Merganser Breeding in Pennsylvania and Nearby States, A	104	205
Hooded Warbler	Cowbird Nest Parasitism is no Problem for Hooded Warblers	364	207
Horned Grebe	Fallout of Horned Grebes during a Snowstorm, A	092	61
Horned Grebe	Banding Records from Pennsylvania - Part 5 - Loons, Grebes, and Cormorants	163	157
House Finch	Behavior Notes, House Finches	082	96
Hudsonian Godwit	Hudsonian Godwit, Lehigh County	054	155
Hudsonian Godwit	Large Number of Hudsonian Godwits in Northampton County, Pennsylvania	184	221
Iceland Gull	Casper and His Ghostly Friends Glaucous and Iceland Gulls in Northampton County	131	16
Iceland Gull	Second Report of Iceland Gull for Berks County	051	23
Iceland Gull	Two in a row: Pittsburgh's winters of gulls, 2014 and 2015	291	4
Iceland Gull	Occurrence of Glaucous Gull and Iceland Gull in Berks County, The	351	11
Indigo Bunting	Indigo Bunting, Westmoreland County	091	28
Ivory-billed Woodpecker	Putative Records of the Ivory-billed Woodpecker in Pennsylvania and the mid-Atlantic	302	71
Jaeger	Jaeger (Pomarine or Parasitic), Erie County	043	98
Kelp Gull	Two in a row: Pittsburgh's winters of gulls, 2014 and 2015	291	4
King Eider	King Eider, Erie County	051	20
King Rail	King Rail Breeding in Western Pennsylvania	073	89
King Rail	King Rail Sighted, Tioga County	033	96
Kinglet	Kinglet Survival Huntingdon County	081	19
Kirtland's Warbler	Kirtland's Warbler Indiana County	172	108
Kirtland's Warbler	Kirtland's Warbler, Franklin County	082	85
Lark Bunting	Lark Bunting - Erie County	172	110
Lark Sparrow	Lark Sparrow, Allegheny County	082	85
Laughing Gull	Laughing Gull, Warren County, First County Record	083	149
Lawrence's Warbler	Lawrence's Warbler, Erie County	043	100
Le Conte's Sparrow	First Verifiable Pennsylvania Record of Le Conte's Sparrow, Westmoreland County	054	157
Least Flycatcher	Identification of a challenging empidonax flycatcher resolved	294	186
Least Flycatcher	Banding Records from Pennsylvania - Part 3 - Flycatchers	072	46
Least Sandpiper	Pennsylvania's Wintering Least Sandpiper	231	34
Least Tern	Least Tern: A probable First County Record Montgomery Co.	072	54
Least Tern	Terns of Hurricane Irene, and other fallout	254	212
Leconte's Sparrow	Leconte's Sparrow in Delaware County	231	34
Leconte's Sparrow	LeConte's Sparrow, Lancaster County	081	17
Leconte's Sparrow	LeConte's Sparrow, Lawrence County	091	28
Lesser Black-backed Gull	Unusual Lesser Black-backed Gull, An, Lancaster County	051	22
Lesser Black-backed Gull	Status and Distribution of Lesser Black-backed Gull in Pennsylvania	233	143
Lesser Black-backed Gull	Two in a row: Pittsburgh's winters of gulls, 2014 and 2015	291	4
Lewis's Woodpecker	Pennsylvania's First Lewis's Woodpecker Bedford County	163	150
Little Blue Heron	Banding Records from Pennsylvania - Part 4 - Waders	073	84
Loggerhead Shrike	First Confirmed Loggerhead Shrike Nesting in Pennsylvania Since 1934	062	65
Loggerhead Shrike	First Record of Loggerhead Shrike since 1982 in Erie County	051	24
Loggerhead Shrike	Serendipitous Shrike, A	024	127
Long-billed Curlew	Long-billed Curlew, Erie County	194	196
Long-eared Owl	Winter of the Long-eared Owls Northampton County	081	13
Long-tailed Jaeger	Long-tailed Jaeger, Erie County	043	98
Long-tailed Jaeger	Long-tailed Jaeger, Somerset County	194	195
Long-tailed Jaeger	Pennsylvania's Second Long-tailed Jaeger, Bucks County	174	267
Long-tailed Jaeger	Terns of Hurricane Irene, and other fallout	254	212
MacGillivray's Warbler	First Pennsylvania Record of MacGillivray's Warbler	191	11
Magnolia Warbler	Magnolia Warbler Trap	224	215
Marbled Godwit	Marbled Godwit, Lancaster County	053	120
Merlin	Banding Records from Pennsylvania - Raptors	062	48
Merlin	Merlin: Expansion of Breeding Range into Pennsylvania	334	226
Mew Gull	First Pennsylvania Record of Mew Gull, Berks County	061	7
Mew Gull	Pennsylvania's First Mew Gull with Notes on its Racial Identification	061	8
Mississippi Kite	Mississippi Kite in Beaver County	023	82
Mississippi Kite	Mississippi Kite, Erie County	022	47
Mississippi Kite	Mississippi Kite, Franklin/Fulton Counties	051	21
Mississippi Kite	Perils of Birding Alone, The (Mississippi Kite)	022	46
Mississippi Kite	Third Western Pennsylvania Record of Mississippi Kite, Erie County	051	21
Mississippi Kite	What is that Bird? (Mississippi Kite)	022	46
Mississippi Kite	From the Files of PORC: Swainson's Hawk and Mississippi Kite Identification	214	160
Mississippi Kite	Kites and More	092	65
Mountain Bluebird	Mountain Bluebird in Northampton County	364	217
Mute Swan	Mute Swans in Clarion County	323	154
Mute Swan	Results of the 2005 Pennsylvania Mid-Summer Mute Swan Survey	201	2
Nashville Warbler	Winter Record of Nashville Warbler, Lancaster County	051	24
Northern Bobwhite	History of Northern Bobwhites in Pennsylvania, A	142	58
Northern Gannet	Belated Report of Northern Gannet in Warren County	213	133
Northern Goshawk	Banding Records from Pennsylvania - Raptors	062	48
Northern Harrier	Banding Records from Pennsylvania - Raptors	062	48
Northern Harrier	Cyclical Pattern Detected in Northern Harrier Migration Counts at Some Pennsylvania Hawk Watches	371	9
Northern Harrier	Northern Harrier Fall-Winter Distribution and Trends in Pennsylvania and Regionally	354	206
Northern Hawk Owl	Northern Hawk Owl, Wayne County	051	16
Northern Mockingbird	Confirmed Nesting of N. Mockingbird in Lawrence	083	144
Northern Saw-whet Owl	Fall 2007: A Saw-whet Owl Flight of Historic Proportions	214	162
Northern Saw-whet Owl	Saw-whet Owl Attacks Feline	044	144
Northern Saw-Whet Owl	Can Nest Boxes be used to Effectively Manage Northern Saw-whet Owls in the Allegheny National Forest?	351	2
Northern Shrike	Pennsylvania's Record High Northern Shrike Invasion of 1999-2000	141	2
Northern Wheatear	Northern Wheatear, Bucks County	093	137
Northern Wheatear	Northern Wheatear, Juniata and Lebanon Counties	114	225
Osprey	Early Late Osprey Flight, The	042	50
Osprey	Osprey Attempt to Nest in Clarion County	162	90
Osprey	Osprey Nesting in Southwestern Somerset County	052	62
Osprey	Osprey Surprise	044	144
Osprey	Banding Records from Pennsylvania - Raptors	062	48
Osprey	Confirmed Nesting of Osprey in Centre and Clinton in 2018	331	12
Pacific Loon	First Pennsylvania Record of Pacific Loon, Erie County	064	144
Pacific Loon	Pacific Loon, Lancaster County	074	133
Pacific Loon	Pacific Loon, Montgomery County	102	92
Pacific Slope Flycatcher	Pacific Slope Flycatcher, Lancaster County	044	142
Pacific Slope Flycatcher	Second State Record of Pacific Slope Flycatcher, Lancaster County	054	156
Pacific-slope Flycatcher	Birding the Mundane and Finding the Rare... First Record of a Pacific-slope Flycatcher East of the Mississippi	044	135
Palm Warbler	Eastern Race of Palm Warbler in Erie County	092	66
Palm Warbler	Migration of Western and Yellow Palm Warblers at Powdermill Nature Reserve, Westmoreland County, Pennsylvania	163	160
Parasitic Jaeger	Parasitic Jaeger - Presque Isle State Park, Erie County	193	157
Parasitic Jaeger	Parasitic Jaeger, Erie County	043	97
Passenger Pigeon	Notes on the Extermination of the Wild Pigeon	093	132
Peregrine Falcon	Confessions of a Peregrine Addict	213	122
Peregrine Falcon	Notes on the Physical Characteristics and Behavior of Peregrine Falcons in the Wyoming Valley (Luzerne County)	124	179
Peregrine Falcon	Peregrine Falcon Reintroduction in Williamsport	094	199
Peregrine Falcon	Recent History and Current Status of Peregrine Falcons in Pennsylvania	052	59
Peregrine Falcon	Successful Nesting by Wyoming Valley Peregrine Falcons	134	169
Peregrine Falcon	Banding Records from Pennsylvania - Raptors	062	48
Peregrine Falcon	Pennsylvania's Peregrine Falcons: a Comeback in Progress	262	74
Philadelphia Vireo	Banding Records from Pennsylvania Part Two - Vireos	063	101
Pied-billed Grebe	Banding Records from Pennsylvania - Part 5 - Loons, Grebes, and Cormorants	163	157
Pied-billed Grebe	Breeding Ruddy Duck and Pied-billed Grebe in Northampton County	273	144
Pine Grosbeak	Northern Finches and the Red-breasted Nuthatch in the Pennsylvania Christmas Bird Count	114	187
Pine Siskin	Yellow Siskin in Berks County	161	7
Pine Siskin	Northern Finches and the Red-breasted Nuthatch in the Pennsylvania Christmas Bird Count	114	187
Pine Siskin	Pine Siskin Banding Recovery: State College to Seattle	251	30
Pink-footed Goose	Pink-footed Goose Berks County	111	20
Pomarine Jaeger	Pomarine Jaeger - Cambria County	012	30
Prothontary Warbler	First Confirmed Nesting of Prothonotary Warbler in Cumberland County	333	168
Purple Finch	Northern Finches and the Red-breasted Nuthatch in the Pennsylvania Christmas Bird Count	114	187
Purple Gallinule	Purple Gallinule (Erie)	134	197
Purple Gallinule	Purple Gallinule Macungie, Lehigh County	204	173
Purple Martin	Luring Purple Martins	034	133
Purple Martin	Swallow and Cuckoo Notes	133	129
Purple Sandpiper	Purple Sandpiper Bucks County	163	155
Razorbill	Alcid Records in Pennsylvania	134	172
Red Crossbill	Pennsylvania's Crossbill Winter of 1997-98	121	2
Red Crossbill	Northern Finches and the Red-breasted Nuthatch in the Pennsylvania Christmas Bird Count	114	187
Red Phalarope	Red Phalarope - Northampton County	172	110
Red Phalarope	Red Phalarope in York County	024	129
Red Phalarope	Red Phalarope, First County Record for Greene County	053	120
Red-bellied Woodpecker	Recent Range Expansion and Population Increase of the Red-bellied Woodpecker in Pennsylvania	014	107
Red-bellied Woodpecker	Red-bellied Woodpecker 1990 CBC Update	063	106
Red-bellied Woodpecker	Red-bellied Woodpecker Caches Corn Kernels in a Telephone Pole	044	145
Red-bellied Woodpecker	Red-bellied Woodpecker Tumbled in 1990 on Southeastern Pennsylvania CBCs, The	061	15
Red-breasted Merganser	Herring Gull Attacks Red-breasted Merganser	044	144
Red-breasted Nuthatch	Northern Finches and the Red-breasted Nuthatch in the Pennsylvania Christmas Bird Count	114	187
Red-eyed Vireo	Banding Records from Pennsylvania Part Two - Vireos	063	101
Red-headed Woodpecker	Nesting Red-headed Woodpeckers in Sullivan County - 1998	122	59
Red-headed Woodpecker	Late nesting Woodpecker	154	227
Red-necked Phalarope	Red-necked Phalarope Attracted to Chum	073	93
Red-necked Phalarope	Red-necked Phalarope, Lancaster County	052	71
Red-necked Phalarope	Terns of Hurricane Irene, and other fallout	254	212
Red-shouldered Hawk	Banding Records from Pennsylvania - Raptors	062	48
Red-shouldered Hawk	Red-shouldered Hawks in Pennsylvania's Christmas Bird Count and Winter Raptor Survey	274	186
Red-tailed Hawk	Dark Morph "Western" Red-tailed Hawk, Centre County	061	6
Red-tailed Hawk	Dark-morph Red-tailed Hawk, Northampton County	051	22
Red-tailed Hawk	New Longevity Record for a wild Red-tailed Hawk	122	52
Red-tailed Hawk	Subspecies and intergrade Red-tailed Hawks in western Pennsylvania	104	203
Red-tailed Hawk	Banding Records from Pennsylvania - Raptors	062	48
Red-tailed Hawk	Distribution Changes of Red-tailed Hawks in Pennsylvania and Regionally	314	193
Red-throated Loon	Banding Records from Pennsylvania - Part 5 - Loons, Grebes, and Cormorants	163	157
Red-winged Blackbird	An Accounting of Large Starling and Blackbird Flocks in Pennsylvania and Regionally	301	2
Redwing	Redwing (Turdus Iliacus) - Bucks County	191	27
Ring-billed Gull	First Successful Ring-billed Gull (Larus delawarensis) Nesting in Pennsylvania, The	132	62
Ring-billed Gull	Attempted Nesting of Three Species of Laridae at Presque Isle State Park	092	79
Ring-billed Gull	Two in a row: Pittsburgh's winters of gulls, 2014 and 2015	291	4
Ring-necked Pheasant	Story of the Ring-necked Pheasant in Pennsylvania, The	131	2
Ross' Goose	First Pennsylvania Record of Ross' Goose, Lancaster County	051	19
Ross' Goose	First Record of Ross' Gull for Pa. York County	082	87
Ross' Goose	Fourth Pennsylvania and Fourth Lancaster County Record of Ross' Goose, Lancaster County	061	6
Ross' Goose	Second Pennsylvania Record of Ross' Goose, Lancaster County	051	19
Rough-legged Hawk	Banding Records from Pennsylvania - Raptors	062	48
Rough-legged Hawk	Pennsylvania Rough-legged Hawk observations within a regional context: CBC and WRS data	282	78
Royal Tern	Royal Tern - Bucks County	184	220
Royal Tern	Royal Tern, Northumberland County	033	96
Royal Tern	Terns of Hurricane Irene, and other fallout	254	212
Ruby-throated Hummingbird	Banded Hummingbirds	193	161
Ruby-throated Hummingbird	Smart Hummingbird Behavior	213	125
Ruddy Duck	First Nesting Record of Ruddy Duck (Oxyura jamaicensis) in Berks County, Pennsylvania	113	142
Ruddy Duck	Breeding Ruddy Duck and Pied-billed Grebe in Northampton County	273	144
Ruddy Turnstone	Terns of Hurricane Irene, and other fallout	254	212
Rufous Hummingbird	Puzzling Rufous Hummingbird, A	154	225
Rufous Hummingbird	Rufous (R/A-Type) Hummingbirds in Pennsylvania	171	2
Rufous Hummingbird	Rufous Hummingbird, Westmoreland County	044	139
Rufous Hummingbird	Rufous/Allen's Hummingbird, Bucks County	083	147
Rufous Hummingbird	Significance of banding in the study of wintering Rufous Hummingbirds, The	214	164
Sabine's Gull	Chase for a Sabine's	224	216
Sabine's Gull	Sabine's Gull in Schulkill County	013	74
Sabine's Gull	Sabine's Gulls, Erie and Lancaster Counties	033	96
Sanderling	Kites and More	092	65
Sanderling	The White-rumped Sandpiper and Sanderling flights of 2011	254	213
Sanderling	Terns of Hurricane Irene, and other fallout	254	212
Sandhill Crane	Finding Sandhill Cranes in Western Pennsylvania	073	90
Sandhill Crane	First Breeding Record of Sandhill Crane for Pennsylvania	073	91
Sandhill Crane	Lesser Sandhill Crane (Grus canadensis canadensis) Erie County	201	6
Sandhill Crane	More Notes on the Sandhill Cranes	083	137
Sandhill Crane	Sandhill Crane, Montgomery County	054	155
Sandhill Crane	Sandhill Cranes in Mercer Co.	063	105
Sandhill Crane	Sandhill Cranes Sullivan County	163	156
Sandhill Crane	Sandhill Cranes, Lawrence Co.	071	8
Sandhill Crane	Second Breeding Record of Sandhill Crane for Pa.	083	136
Sandhill Crane	Greater Sandhill Crane in Pennsylvania, The	321	3
Sandwich Tern	Terns of Hurricane Irene, and other fallout	254	212
Scissor-tailed Flycatcher	Scissor-tailed Flycatcher - Lebanon County	183	172
Scissor-tailed Flycatcher	Scissor-tailed Flycatcher, Westmoreland County	222	94
Scissor-tailed Flycatcher	Scissor-tailed Flycatcher at Bartram's Garden, Philadelphia County	274	190
Scott's Oriole	First Record of Scott's Oriole for Pennsylvania	211	26
Seaside Sparrow	Seaside Sparrow, Lancaster County	031	14
Sedge Wren	First Record of Sedge Wren wintering in Pennsylvania	191	29
Sedge Wren	Sedge Wren, Crawford County	033	97
Sedge Wren	Sedge Wrens successfully breed in Montgomery County in 2012	272	86
Sharp-shinned	Pennsylvania CBC counts of Sharp-shinned and Cooper's Hawks	113	134
Sharp-shinned Hawk	Behavior Notes, A Sharp-shinned Duck Hawk?	082	96
Sharp-shinned Hawk	Banding Records from Pennsylvania - Raptors	062	48
Sharp-tailed Sparrow	Case of the Mystery Sharp-tailed Sparrow, The	181	2
Sharp-tailed Sparrow	Sharp-tailed Sparrow at Green Lane Reservoir, Montgomery County	034	127
Sharp-tailed Sparrow	Sharp-tailed Sparrow in Crawford County	024	129
Sharp-tailed Sparrow	Sharp-tailed Sparrows, Lancaster County	054	159
Sharp-tailed Sparrow	Subspecies of the Sharp-tailed Sparrow and the Re-identification of a Western Pennsylvania Specimen, The	061	13
Short-eared Owl	Breeding Season Record of a Short-eared Owl Clearfield Co.	072	53
Short-eared Owl	Nesting Short-eared Owls at Imperial	114	216
Short-eared Owl	Short-eared Owls Breed In Pennsylvania In 1997	122	47
Short-eared Owl	Short-eared Owls in Clarion County	022	55
Short-eared Owl	Short-eared Owls, Mercer County	032	53
Slaty-backed Gull	Slaty-backed Gull in Pennsylvania (...and Ontario, and New York...), A	221	2
Snow Bunting	Snow Bunting Observations from Montour Preserve	343	148
Snowy Egret	Banding Records from Pennsylvania - Part 4 - Waders	073	84
Snowy Owl	Project SNOWStorm and PSO's owl "Erie" - an update	291	2
Snowy Plover	Snowy Plover Allegheny County	163	153
Song Sparrow	Unusual Song Sparrow, An	094	191
Sooty Tern	Another Sooty Tern from Hurricane Fran	142	109
Sooty Tern	Sooty Tern, Bucks, Delaware, and Lancaster Counties	103	154
Sooty Tern	Terns of Hurricane Irene, and other fallout	254	212
Spotted Towhee	Spotted Towhee (Westmoreland)	134	200
Summer Tanager	Summer Tanager in Crawford County	231	33
Swainson's Hawk	From the Files of PORC: Swainson's Hawk and Mississippi Kite Identification	214	160
Swainson's Thrush	Large Catharus Thrush Migration in Hamburg, Berks Co., Pa.	142	99
Swainson's Warbler	Swainson's Warbler - Allegheny County	012	30
Swainson's Warbler	Swainson's Warbler in Western Pennsylvania -- rare vagrant or breeding species?	033	89
Swainson's Warbler	Swainson's Warblers!! Six Reported Sightings in the Spring of 2021	353	146
Swallow-tailed Kite	Kites and More	092	65
Thayer's Gull	Partial Remains of Thayer's Gull from Presque Isle State Park, Erie County	052	72
Thayer's Gull	Two in a row: Pittsburgh's winters of gulls, 2014 and 2015	291	4
Thick-billed Murre	Alcid Records in Pennsylvania	134	172
Townsend's Solitaire	Hawk Mountain Incident, The (Townsend' Solitaire)	034	126
Townsend's Solitaire	Townsend's Solitaire McKean County	191	31
Townsend's Warbler	Townsend's Warbler, Luzerne County	114	226
Townsend's Warbler	Townsend's Warbler on the Delaware/Philadelphia Line	244	185
Traill's Flycatcher	Banding Records from Pennsylvania - Part 3 - Flycatchers	072	46
Tree Swallow	Prey Availability for Tree Swallows (Tachycineta bicolor) Resistance to Phenological Mismatch	354	224
Tringa	Unusual Tringa, An, Delaware County	114	227
Tropical Kingbird	Pennsylvania's first Tropical Kingbird (Tyrannus melancholicus)	273	147
Trumpeter Swan	Immature Trumpeter Swan at Blue Marsh Lake, Berks County	162	89
Trumpeter Swan	Occurrence of Wing-tagged Trumpeter Swan (Olor buccinator) in Pennsylvania and New York	032	47
Trumpeter Swan	Trumpeter Swans in Warren County	031	15
Trumpeter Swan	Trumpeter Swans Breeding in Pennsylvania	324	190
Turkey Vulture	Banding Records from Pennsylvania - Raptors	062	48
Upland Sandpiper	104 Upland Sandpipers in Mercer County	032	54
Upland Sandpiper	Scenario of the Upland Sandpiper in Western Pa.	084	204
Varied Thrushe	Invasion of the Varied Thrushes, The	081	16
Vermillion Flycatcher	Pennsylvania;'s First Record of Vermillion Flycatcher, Tioga County	054	156
Virginia Rail	First confirmed breeding record of Virginia Rail in Allegheny County	303	136
Warbling Vireo	Banding Records from Pennsylvania Part Two - Vireos	063	101
Western Kingbird	Western Kingbird - Berks County	211	27
Western Kingbird	Western Kingbird, Northampton County	043	99
Western Kingbird	Western Kingbird, Philadelphia County	043	99
Western Meadowlark	Western Meadowlark in Dauphin County	232	94
Western Tanager	Western Tanager in Centre County	294	189
Whimbrel	Kites and More	092	65
Whimbrel	Terns of Hurricane Irene, and other fallout	254	212
White Ibis	White Ibis in Dauphin County	213	127
White Ibis	White Ibis in Northampton County	213	126
White Ibis	Banding Records from Pennsylvania - Part 4 - Waders	073	84
White Ibis	Summary of the Distribution of Ibises in Pennsylvania	054	150
White-eyed Vireo	Banding Records from Pennsylvania Part Two - Vireos	063	101
White-rumped Sandpiper	The White-rumped Sandpiper and Sanderling flights of 2011	254	213
White-winged Crossbill	Northern Finches and the Red-breasted Nuthatch in the Pennsylvania Christmas Bird Count	114	187
White-winged Crossbill	Pennsylvania's Crossbill Winter of 1997-98	121	2
White-winged Crossbill	White-winged Crossbill Invasion of 2008-09	232	78
White-winged Crossbill	What they ate: White-winged Crossbill food plants during the 2008-09 irruption in Pennsylvania	232	81
White-winged Dove	First White-winged Dove Record for Pennsylvania, Erie County	102	95
White-winged Dove	White-winged Dove, Schuylkill County	122	63
Willet	Status and field identification problems of the Willet subspecies in Pennsylvania	122	42
Willet	Terns of Hurricane Irene, and other fallout	254	212
Wilson's Snipe	Observations During the Breeding Season of the Common Snipe in Lawrence and Mercer Counties of Western Pennsylvania	102	42
Winter Wren	First Documented Record of Summering Winter Wrens in Philadelphia	053	119
Wood Duck	Wood Duck Tale, A	032	53
Wood Stork	Wood Stork, Lancaster and Lebanon Counties	103	155
Yellow Warbler	Late Yellow Warbler, A, Centre County	084	218
Yellow-bellied Flycatcher	Yellow-bellied Flycatcher Nesting in Pennsylvania with a Review of its History, Distribution, Ecology, Behavior, and Conservation Problems	053	107
Yellow-bellied Sapsucker	Yellow-bellied Sapsucker Nesting in Butler County	064	146
Yellow-billed Cuckoo	Note on Cuckoos in Butler County, A	113	174
Yellow-billed Cuckoo	Swallow and Cuckoo Notes	133	129
Yellow-billed Loon	Yellow-billed Loon in Dauphin County: First Pennsylvania Record	212	72
Yellow-crowned Night-Heron	Behavior Notes, Yellow-crowned Night-Heron	082	95
Yellow-throated Vireo	Banding Records from Pennsylvania Part Two - Vireos	063	101
Yellow-throated Warbler	RESEARCH NOTE: Photographic Evidence of Brood Parasitism of Yellow-throated Warbler by Brown-headed Cowbird in Pennsylvania	372	82