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Birds of Note All Records For Black Tern
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| Black Tern | 1993 | Oct-Dec | Lancaster | 1 at Washington Boro 10/16 was very late (J. Book) |
| Black Tern | 1994 | Oct-Dec | Westmoreland | 1 on 10/2 at Donegal L. (Mike & Evaleen Watko) |
| Black Tern | 1995 | Oct-Dec | Cambria | 2 on 9/14 at Prince Gallitzin SP (John Salvetti) |
| Black Tern | 1995 | Oct-Dec | Lancaster | 1 on 10/6 and 10/8 at Washington Boro (Bob Schutsky, Eric Witmer, Tom Garner) |
| Black Tern | 1995 | Jul-Sep | Crawford | 1 on 7/30 at Pymatuning L. (Issac Fields) |
| Black Tern | 1995 | Oct-Dec | Indiana | 2 on 8/22 at Yellow Creek SP (Carol Guba, Margaret Higbee, Gloria Lamer) |
| Black Tern | 1995 | Oct-Dec | Lancaster | 1 on 8/5 (Eric Witmer, et al) and 1 on 9/14 (Jerry Book) at Washington Boro |
| Black Tern | 1995 | Oct-Dec | Lebanon | 1 on 9/16 at Memorial L. (Jan Witmer) |
| Black Tern | 2000 | Jul-Sep | Erie | Present part of the quarter |
| Black Tern | 2000 | Oct-Dec | Bucks | 2 on 9/13 at Van Sciver Lake (Bruce McNaught) |
| Black Tern | 2000 | Jul-Sep | Crawford | 1-2 on 7/26-8/1 at Pymatuning Fish Hatchery (Ron Leberman, Marvin Byler) |
| Black Tern | 2000 | Oct-Dec | Dauphin | 2 on 8/30 on the Susquehanna River at Harrisburg (Ramsay Koury) |
| Black Tern | 2000 | Oct-Dec | Delaware | 1 on 9/12 at Essington (Matt Sharp) |
| Black Tern | 2002 | Aug-Nov | Somerset | 1 on 9/26 at Lake Stoneycreek (Jeff Payne, Lauretta Payne) |
| Black Tern | 2002 | Jul | Crawford | Found at Hartstown Marsh and PY through June and July (R.F. Leberman, R.C. Leberman, M. Byler) |
| Black Tern | 2002 | Aug-Nov | Lancaster | unreported number seen from 8/17-9/28 |
| Black Tern | 2002 | Aug-Nov | Centre | 1 on 11/3-6 at Bald Eagle State Park (Molly Heath, m. obs.) |
| Black Tern | 2004 | Jun-Jul | Crawford | 2 adults at the traditional nesting location in Harstown Marsh 6/19 (Marvin Byler) |
| Black Tern | 2004 | Jun-Jul | Allegheny | 7 at Imperial on 7/30 remained until 7/31 (Ross Gallardy); A flock of 9 birds appeared at Dashields Dam on the Ohio River on 7/31 (Becky Smith) |
| Black Tern | 2007 | Jun-Jul | Lancaster | Conejahola Flats 6/10 (Tom Amico Bob Schutsky). |
| Black Tern | 2007 | Jun-Jul | Crawford | One at Miller's Pond 7/4 (Randy Stringer listserv) |
| Black Tern | 2008 | Jun-Jul | Northampton | One spent the day at a retention pond on Gremar Rd. (Ken and Gladys Price). |
| Black Tern | 2008 | Jun-Jul | Crawford | At Geneva 7/23 (Robert Leberman) |
| Black Tern | 2008 | Jun-Jul | Lancaster | Seen late in Jul Susquehanna River, Conejohela Flats |
| Black Tern | 2009 | Mar-May | Bedford | one at Dunnings Creek Wetlands 4/11 (Tom Dick) |
| Black Tern | 2009 | Mar-May | Allegheny | one at Imperial 5/10 (Mark Vass) |
| Black Tern | 2009 | Mar-May | Crawford | one at the Pymatuning Spillway 5/21 (Mark Vass) |
| Black Tern | 2009 | Mar-May | Erie | one at Edinboro Lake 5/12 (John Tautin), one at Niagara Pond at Presque Isle State Park 5/12 and one at Gull Point at Presque Isle 5/14 (Ryan Miller, Jerry McWilliams) |
| Black Tern | 2009 | Mar-May | Lancaster | 2 along the Susquehanna River at the "Rocks" 5/29-30 |
| Black Tern | 2009 | Mar-May | Washington | one at Greencove Wetlands 5/26 (Lauren Conkle), one in Bentleyville 5/26 (Ross Gallardy). |
| Black Tern | 2009 | Mar-May | Berks | one at Lake Ontelaunee 5/7 (Rudy Keller) |
| Black Tern | 2011 | Mar-May | Bedford | a flock of 15 at Dunnings Creek Wetlands 4/10 (Tom Dick) |
| Black Tern | 2011 | Mar-May | Berks | one at Shartlesville 5/14 (Matt Wlasniewski), one at Blue Marsh Lake 5/15 (Ken Lebo) and one at Lake Ontelaunee 5/24 (Rudy Keller) |
| Black Tern | 2011 | Mar-May | Dauphin | two at Marysville 5/20 (Dave McNaughton, Martin Wilson) and one there 5/23 (Ramsay Koury) |
| Black Tern | 2011 | Mar-May | Lehigh | two at Upper Macungie 5/20 (Jason Horn, Billy Weber) |
| Black Tern | 2011 | Mar-May | Wyoming | one at Lake Carey 5/1 (Joe DeMarco). |
| Black Tern | 2011 | Jun-Jul | Crawford | one at the Pymatuning Spillway 7/10 (Ronald F. Leberman) |
| Black Tern | 2011 | Jun-Jul | Cambria | one at Prince Gallitzin State Park 6/12 (Dave Gobert). |
| Black Tern | 2012 | Aug-Nov | Cambria | at Prince Gallitzin State Park 9/4 (Dave Gobert, Shannon Thompson) and 9/16 (Dave Gobert) |
| Black Tern | 2012 | Aug-Nov | Bedford | 8 at Dunnings Creek Wetlands 10/30 (Tom Dick) |
| Black Tern | 2012 | Aug-Nov | Bucks | one at Rohm and Haas, Bristol 8/21 (Devich Farbotnik) and 2 at Peace Valley Park 9/5 (Henry D'Allesandro) |
| Black Tern | 2012 | Aug-Nov | Berks | one at French Creek State Park 8/18 (Todd Frantz) |
| Black Tern | 2012 | Aug-Nov | Lancaster | as many as 15 on the Susquehanna River at and near the Conejohela Flats 8/3-24 (m.ob., eBird) |
| Black Tern | 2012 | Aug-Nov | Philadelphia | up to 9 at John Heinz N.W.R. 8/11-9/24 (m.ob.) |
| Black Tern | 2012 | Aug-Nov | York | one at Lake Redman 8/10 (Dick Cleary). |
| Black Tern | 2012 | Aug-Nov | Centre | up to 9 at Bald Eagle State Park 8/11-12 (Bob Snyder) |
| Black Tern | 2012 | Aug-Nov | Indiana | one at Yellow Creek State Park 8/14 and 9/18 (Lee Carnahan, Margaret Higbee, et al.) |
| Black Tern | 2012 | Jun-Jul | Venango | Kahle Lake 6/1 (Gary Edwards). |
| Black Tern | 2013 | Aug-Nov | Philadelphia | 2-3 at John Heinz N.W.R. 8/9-11 (Brian Quindlen, Frank Windfelder, et al.) |
| Black Tern | 2013 | Jun-Jul | Crawford | one at the Fish Hatchery 6/30 (Robert F. Leberman) |
| Black Tern | 2013 | Jun-Jul | Franklin | at the Kriner Road ponds south of Chambersburg 6/14-17 (Bill Oyler, listserv) |
| Black Tern | 2013 | Aug-Nov | Berks | one at Lake Ontelaunee 8/1 (Ken Haas) and 2 at the Shartlesville pond 8/9 (Ken Lebo) |
| Black Tern | 2013 | Aug-Nov | Bucks | 2 at the Penn-Warner Tract 9/21 (Devich Farbotnik) |
| Black Tern | 2013 | Aug-Nov | Crawford | one imm. at Tamarack Lake 8/10 (Richard Eakin) and one adult at Woodcock Lake 8/10 (Richard Eakin) |
| Black Tern | 2013 | Jun-Jul | Somerset | at Somerset Lake 7/12 (Andy McGann). |
| Black Tern | 2013 | Mar-May | Washington | Present at a smallpond on Bebout Road, Peters Twp. 5/11 (Gigi Gerben) |
| Black Tern | 2013 | Jun-Jul | Berks | one at Blue Marsh Lake 6/7 and another 6/29 (Joan Silagy) |
| Black Tern | 2013 | Aug-Nov | Somerset | 7 at Somerset Lake 8/1 (Michael David, Andy McGann, MichaelLanzone, eBird). |
| Black Tern | 2014 | Jun-Jul | Crawford | an adult at the Pymatuning Spillway 7/20 (Ronald F. Leberman) |
| Black Tern | 2014 | Jun-Jul | Erie | 3 at a large pond near Waterford 6/10 (James Hill III), and far out on Lake Erie 7/2 (Jim Flynn) |
| Black Tern | 2014 | Aug-Nov | Erie | one at Gull Point 8/16 (Ruth Swaney) |
| Black Tern | 2014 | Aug-Nov | Franklin | one at Greencastle Reservoir 8/20 (Carl Garner) |
| Black Tern | 2014 | Aug-Nov | Allegheny | singles at Imperial 8/3 and 9/1 (both Mark Vass) |
| Black Tern | 2014 | Aug-Nov | Bucks | 4 at Mud Island 9/6 and one there 9/13 (Devich Farbotnik) |
| Black Tern | 2014 | Aug-Nov | Butler | 24 at Bear Run on Lake Arthur 8/31 (Mark Vass, ebird) |
| Black Tern | 2014 | Aug-Nov | Cambria | 9 at Duman's Dam 8/31 (Dave Gobert) |
| Black Tern | 2014 | Aug-Nov | Centre | 2 at Colyer Lake 8/12 (Michael Dreibelbis, et al.) and up to 7 at Bald Eagle State Park 8/12 and 8/31 (Michael Dreibelbis, et al.) |
| Black Tern | 2014 | Aug-Nov | Chester | one at Chambers Lake 8/31 (Rick Robinson) |
| Black Tern | 2014 | Aug-Nov | Huntingdon | one at Lake Perez 8/12 (Jon Kauffman) |
| Black Tern | 2014 | Aug-Nov | Indiana | at least 18 and possibly 26 at Yellow Creek State Park 8/12 (Lee Carnahan, Margaret Higbee, Roger Higbee) and 8 there 8/31 (Deb Grove, Greg Grove) |
| Black Tern | 2014 | Aug-Nov | Lebanon | one at Kreider's Retention Pond 9/2-3 (Timothy Becker, Steve Rannels) |
| Black Tern | 2014 | Aug-Nov | Somerset | one at Somerset Lake 8/27 (Andy McGann) and over 50 there 9/1 (Mike Lanzone). |
| Black Tern | 2014 | Aug-Nov | Berks | 8 at Lake Ontelaunee 8/12 (Dan Altif) and 11 at Blue Marsh Lake 9/4 (Joan Silagy) |
| Black Tern | 2014 | Jun-Jul | Lebanon | one at Memorial Lake State Park 6/7 (Tim Becker, Kathy Becker) |
| Black Tern | 2014 | Jun-Jul | Luzerne | one at Lake Jean in Ricketts Glen State Park 6/18 (Timothy Kita) and again 7/5 (Paul Bernhardt) |
| Black Tern | 2014 | Jun-Jul | Montour | over Lake Chillisquaque 7/25 (David Brown, eBird, photo) |
| Black Tern | 2014 | Jun-Jul | Pike | at Promised Land State Park 7/5 (ph. Zack Moyer, eBird). |
| Black Tern | 2014 | Aug-Nov | Montour | 6 at Montour Preserve 8/12 (Andy Keister, eBird) |
| Black Tern | 2014 | Aug-Nov | Blair | one at Canoe Creek State Park 8/31-9/1 (Michael David) |
| Black Tern | 2014 | Aug-Nov | Monroe | one at Lynchwood Lake 8/23 (ph. Bruce Johnson) |
| Black Tern | 2015 | Aug-Nov | Philadelphia | one at John Heinz N.W.R. 8/19 (Frank Windfelder). |
| Black Tern | 2015 | Aug-Nov | Bedford | 4 at Shawnee State Park 9/15 (Tom Dick) |
| Black Tern | 2015 | Aug-Nov | Mercer | one at the Shenango Wildlife Area 8/5 (Steve Sanford) |
| Black Tern | 2015 | Aug-Nov | Franklin | one at Pleasant Hill 8/20 (Bill Oyler, eBird) |
| Black Tern | 2015 | Aug-Nov | Dauphin | up to 6 on the Susquehanna River near Marysville 8/22-24 (Ted Nichols II, Michael David, eBird) and one at Fort Hunter 9/16 (Ed Bernot, eBird) |
| Black Tern | 2015 | Jun-Jul | Somerset | 2 at Somerset Lake 6/16 (Linda Greble). |
| Black Tern | 2015 | Aug-Nov | Bucks | one at the Penn-Warner Tract 8/11 (Devich Farbotnik) |
| Black Tern | 2015 | Aug-Nov | Centre | one at Bald Eagle State Park 8/27 (Brian Schmoke) |
| Black Tern | 2015 | Aug-Nov | Juniata | 2 on the Juniata River at the Mifflintown River Access 8/19 (Chad Kauffman, Aden Troyer) |
| Black Tern | 2015 | Aug-Nov | Lehigh | 2 at Nestle Way 8/21 (Frank Dickman) |
| Black Tern | 2015 | Aug-Nov | Montgomery | one at Green Lane Park 8/19 (Kenneth Rieker) |
| Black Tern | 2016 | Mar-May | Somerset | one at Quemahoning Reservoir 5/3 (Linda Greble). |
| Black Tern | 2016 | Jun-Jul | Crawford | one at Pymatuning-Miller's Ponds 6/7 (Tony Bledsoe) and one at Pymatuning Fish Hatchery 6/22 (Ron Leberman) |
| Black Tern | 2016 | Aug-Nov | Montgomery | See Local Notes |
| Black Tern | 2016 | Aug-Nov | Crawford | See Local Notes |
| Black Tern | 2016 | Aug-Nov | Erie | See Local Notes |
| Black Tern | 2016 | Aug-Nov | Indiana | See Local Notes |
| Black Tern | 2016 | Aug-Nov | Lancaster | See Local Notes |
| Black Tern | 2016 | Aug-Nov | Luzerne | See Local Notes |
| Black Tern | 2016 | Mar-May | Dauphin | two 5/7 and one 5/27 at West Fairview (Ramsay Koury, Annette Mathes), three at Fort Hunter 5/1 (Deuane Hoffman) and 5/12 (Ed Bernot) |
| Black Tern | 2016 | Mar-May | Erie | one at Presque Isle State Park 5/17 (Johan Nilsson, Johan Sodercrantz) |
| Black Tern | 2016 | Mar-May | Franklin | one at Greencastle Reservoir 5/1 (Carl Garner, Dale Gearhart, Bill Oyler, et al.) |
| Black Tern | 2016 | Aug-Nov | Northumberland | See Local Notes |
| Black Tern | 2016 | Aug-Nov | Centre | See Local Notes |
| Black Tern | 2016 | Aug-Nov | Chester | See Local Notes |
| Black Tern | 2016 | Aug-Nov | Bucks | See Local Notes |
| Black Tern | 2016 | Aug-Nov | Lycoming | See Local Notes |
| Black Tern | 2016 | Mar-May | Bedford | seven at Shawnee State Park 5/11 (Tom Dick) |
| Black Tern | 2016 | Jun-Jul | Lancaster | 2 on the Susquehanna R. at Peach Bottom 7/24 (Bob Schutsky). |
| Black Tern | 2016 | Jun-Jul | Indiana | one flew low over the marsh at Yellow Creek SP 6/14 |
| Black Tern | 2016 | Mar-May | Centre | one at Bald Eagle State Park 5/13 (Bill Chambers) |
| Black Tern | 2016 | Jun-Jul | Franklin | one transitioning from breeding plumage at Kriner Road Retention Ponds 7/25 (Bill Oyler) |
| Black Tern | 2017 | Aug-Nov | Franklin | at Greencastle Reservoir 8/13-16 (Carl Garner, Bill Oyler, ValBarnes, Nancy Magnusson) and 9/3 (Carl Garner) |
| Black Tern | 2017 | Aug-Nov | Indiana | 3 at Yellow Creek SP 8/22 (Lee Carnahan, et al.) |
| Black Tern | 2017 | Aug-Nov | Lancaster | 81 at the Conejohela Flats 8/18 (Meredith Lombard) with smallernumbers there through 9/10 (m.ob.) |
| Black Tern | 2017 | Aug-Nov | Lycoming | 3 at Canfield Island 8/18 (Bobby Brown, Deb Brown, Bob Brown) and oneat Rose Valley Lake 8/18 (Steve Pinkerton) |
| Black Tern | 2017 | Aug-Nov | Montgomery | one at Green Lake Park 9/16 (Joe Greco) |
| Black Tern | 2017 | Aug-Nov | Somerset | one at Somerset Lake 8/11 (Jeff Payne) |
| Black Tern | 2017 | Aug-Nov | Westmoreland | one at Acme Dam 9/5 (Josh Lefever) |
| Black Tern | 2017 | Aug-Nov | York | up to 3 at Codorus SP 8/6-20 (Karen Lippy, m.ob.). |
| Black Tern | 2017 | Jun-Jul | Crawford | one photographed at Pymatuning SP, Miller's Ponds 6/5 (Mike Hudson) |
| Black Tern | 2017 | Jun-Jul | Lebanon | one in non- breeding plumage provided a 13th county record at Memorial Lake SP 6/7 (Mary Coomer) |
| Black Tern | 2017 | Jun-Jul | Somerset | one at Quemahoning Reservoir 7/29 (Linda Greble). |
| Black Tern | 2017 | Aug-Nov | Armstrong | one at Crooked Creek Lake 9/3-9/10 (Theo Rickert, et al.) |
| Black Tern | 2017 | Aug-Nov | Berks | singles at Lake Ontelaunee 9/3(Dan Altif) and 10/12 (Matt Wlasniewski) |
| Black Tern | 2017 | Aug-Nov | Bucks | one at the Penn-Warner Tract 8/19 (Devich Farbotnik) |
| Black Tern | 2017 | Aug-Nov | Centre | as manyas 20 at Bald Eagle SP 8/18-22 (Carl Engstrom, et al.) |
| Black Tern | 2017 | Aug-Nov | Chester | 2 at Marsh Creek SP 8/18 (Michael Hartshorne, Holly Merker) |
| Black Tern | 2017 | Aug-Nov | Delaware | one at Fort Mifflin 8/23 (Al Guarente) |
| Black Tern | 2018 | Aug-Nov | Bucks | one at Peace Valley Park 8/18 (August Mirabella) |
| Black Tern | 2018 | Aug-Nov | Butler | one at Watts Bay, Lake Arthur 9/10 (Martin Carlin) |
| Black Tern | 2018 | Aug-Nov | Cambria | 2 at Prince Gallitzin SP 8/21 (Dave Gobert) |
| Black Tern | 2018 | Aug-Nov | Centre | one at Bald Eagle SP 9/11 (Julia Plummer, Joe Verica) and 2 at Scotia Barrens and Pond 9/12-14 (Joe Verica, et al.) |
| Black Tern | 2018 | Aug-Nov | Chester | 4 at Marsh Creek SP 8/17 (Larry Lewis) |
| Black Tern | 2018 | Aug-Nov | Delaware | one on Delaware River at Fort Mifflin 8/29 (Rob Fergus) |
| Black Tern | 2018 | Jun-Jul | Crawford | one at Pymatuning Spillway 6/12 (Ron Leberman) |
| Black Tern | 2018 | Jun-Jul | Lancaster | one in alternate plumage at Conejohela Flats 7/25 (Zachary Millen) |
| Black Tern | 2018 | Jun-Jul | Berks | one in breeding plumage at Blue Marsh Lake 6/1 (Russ Hoffman) |
| Black Tern | 2018 | Jun-Jul | Philadelphia | one in alternate plumage at John Heinz Refuge 7/24 (Todd Fellenbaum). |
| Black Tern | 2018 | Aug-Nov | Lycoming | one at Nisbet 9/15 (Bobby Brown, et al.) |
| Black Tern | 2018 | Aug-Nov | Philadelphia | one at John Heinz N.W.R. 8/11 (Mark Greenberry) |
| Black Tern | 2018 | Aug-Nov | Indiana | 14 at Yellow Creek SP 8/21 during rain (Lee Carnahan, Margaret Higbee, Roger Higbee, Debbie Kalbfleisch, Gloria Lamer) |
| Black Tern | 2018 | Aug-Nov | Montgomery | one each at Green Lane Park 8/4 (Paul Heveran), Wissahickon Waterfowl Preserve 8/23 (Jack McBrearty, Curt Dunn, et al.), and Green Lane Park 9/13 (Paul Heveran, Eric Zawatski) |
| Black Tern | 2018 | Aug-Nov | Montour | one at Montour Preserve 8/13 (Andy Keister, eBird) |
| Black Tern | 2018 | Aug-Nov | Venango | one at Kahle Lake 9/12 (Jerry Stanley). |
| Black Tern | 2018 | Aug-Nov | Lancaster | 2 at Conejohela Flats 9/2 (Mike Epler) and 2 at Middle Creek W.M.A. 9/9 (Bruce Carl) |
| Black Tern | 2019 | Aug-Nov | Butler | one at Lake Arthur's North Shore 8/10 (ph. Martin Carlin) |
| Black Tern | 2019 | Aug-Nov | Dauphin | one at West Fairview 8/15 (Evan Houston, eBird) |
| Black Tern | 2019 | Jun-Jul | Lancaster | adult at Susquehanna River Conejohela Flats 7/17 and 7/23 (Jason Horn) |
| Black Tern | 2019 | Jun-Jul | Venango | one at Two Mile Run Park 6/12 (Ed Atts). |
| Black Tern | 2019 | Jun-Jul | Centre | one at Scotia Barrens and Pond 7/7 (Jason Collens) |
| Black Tern | 2019 | Aug-Nov | Delaware | 3 at Fort Mifflin 8/18 (Jason Horn) |
| Black Tern | 2019 | Aug-Nov | Erie | one at Gull Point 9/23 (Don Snyder) |
| Black Tern | 2019 | Aug-Nov | Franklin | one at Antrim Commons Ponds 8/21 (Bill Oyler, et al.) and 2 there 8/22 (Bob Koontz) |
| Black Tern | 2019 | Aug-Nov | Lancaster | top count for the season was 12 on Susquehanna River, Lake Clark 8/28 (Jason Horn, Chuck Berthoud) |
| Black Tern | 2019 | Aug-Nov | Lycoming | one at Rose Valley Lake 8/28 (Bobby Brown, David Brown, Deb Brown, Bob Brown) |
| Black Tern | 2019 | Aug-Nov | Philadelphia | one at John Heinz N.W.R. 8/2 (Rich Ziegler) |
| Black Tern | 2019 | Aug-Nov | Pike | 4 at Lake Wallenpaupack 9/2-3 (Michael Schall, Corinne Campbell Schall), same birds as in Wayne |
| Black Tern | 2019 | Aug-Nov | Wayne | 4 at Lake Wallenpaupack 9/2 (Michael Schall), same birds as in Pike. |
| Black Tern | 2019 | Jun-Jul | Erie | two at Gull Point 6/1 (Carl Engstrom, Eric Zawatski) and one there 6/2 (Sam Jolly) |
| Black Tern | 2020 | Jun-Jul | Crawford | two in the Pymatuning Goose Management Area 7/14 (Ron Leberman). |
| Black Tern | 2020 | Aug-Nov | Somerset | one at Quemahoning Reservoir 9/29 (Linda Greble) |
| Black Tern | 2020 | Aug-Nov | Wayne | 2 at White Oak Pond 9/2 (Chris Fischer, eBird). |
| Black Tern | 2020 | Aug-Nov | Schuylkill | one at Landingville Dam and Marsh 8/2 (Thomas Buehl Jr.) |
| Black Tern | 2020 | Aug-Nov | Bucks | one at Nockamixon SP 8/4 (Bill Etter) |
| Black Tern | 2020 | Aug-Nov | Butler | one at Moraine SP 8/16 (Martin Carlin), 3 there 8/21 (Kimberly Berry, Mary Alice Koeneke, Glenn Koppel, Martin Carlin), and one at the Lake Arthur North Shore 9/6 (Martin Carlin) |
| Black Tern | 2020 | Aug-Nov | Cambria | one at Prince Gallitzin SP 8/7 (Tony DeSantis, eBird) |
| Black Tern | 2020 | Aug-Nov | Delaware | seven reports (m.ob.) |
| Black Tern | 2020 | Aug-Nov | Indiana | 3 at Yellow Creek SP 9/8 (Lee Carnahan, Margaret Higbee, Roger Higbee) |
| Black Tern | 2020 | Aug-Nov | Lancaster | regular at the Conejohela Flats 8/2-9/8 (m.ob.) with a top count of 22 on 9/3 (Jonathan DeBalko, Jason Horn, eBird) |
| Black Tern | 2020 | Aug-Nov | Lebanon | one at Middle Creek W.M.A. 8/4 (Steve Ferreri) and 2 there 9/1-2 (Steve Ferreri, Jonathan Heller, et al.) |
| Black Tern | 2020 | Aug-Nov | Lehigh | one at Alburtis Road 9/1 (Brandon Swayser) |
| Black Tern | 2020 | Aug-Nov | Philadelphia | one at the Navy Yard 8/12 (Robert Karchnyak) |
| Black Tern | 2021 | Aug-Nov | Butler | one at Lake Arthur 9/7 (Karen Delaney) |
| Black Tern | 2021 | Aug-Nov | Chester | 4 at Struble Lake 8/18 (Larry Lewis) |
| Black Tern | 2021 | Aug-Nov | Clarion | one at Kahle Lake 8/17 (Eric Schill, Jerry Stanley) |
| Black Tern | 2021 | Aug-Nov | Crawford | one at Miller Ponds 8/9 (Isaac Field) |
| Black Tern | 2021 | Aug-Nov | Delaware | seen at Hog Island seven days 8/13-29 (m.ob.) with high of 20 on 8/19 (Sara Busch) |
| Black Tern | 2021 | Aug-Nov | Fayette | 9 at Greenlick Run Lake 9/1 (Shannon Thompson, m.ob.) |
| Black Tern | 2021 | Aug-Nov | Franklin | one at Antrim Commons Ponds 9/5 (Missy Cutchall) |
| Black Tern | 2021 | Aug-Nov | Bucks | one at Peace Valley Park 8/5 (Edward Dolan) |
| Black Tern | 2021 | Jun-Jul | Butler | one at Moraine SP 6/7 (Martin Carlin) |
| Black Tern | 2021 | Jun-Jul | Cambria | briefly at Prince Gallitzin SP 7/13 (Dave Gobert) |
| Black Tern | 2021 | Jun-Jul | Chester | one 6/4 at Struble Lake (m.ob.) |
| Black Tern | 2021 | Jun-Jul | Crawford | one at Pymatuning SP Spillway 6/23 (Isaac Field, Ron Leberman) |
| Black Tern | 2021 | Jun-Jul | Lancaster | one on Susquehanna River, Conejohela Flats 6/12 (anon.) and 7/18 (Meredith Lombard, Michael Hartshorne). |
| Black Tern | 2021 | Aug-Nov | Lawrence | one at Shaner Road marsh 9/5 (Tom Pinter) |
| Black Tern | 2021 | Aug-Nov | Lycoming | one at Rose Valley Lake 8/12 (Bobby Brown, Rebecca Brown) |
| Black Tern | 2021 | Aug-Nov | Philadelphia | present at Navy Yard 9/9-10 (Ben Filreis, Holger Pflicke, Rich Ziegler) and one at Fort Mifflin 8/14 (Martin Dellwo, Patrick McGill) |
| Black Tern | 2021 | Aug-Nov | Pike | one at Shohola WMA 8/18 (Alexsis Neenan) |
| Black Tern | 2021 | Aug-Nov | Schuylkill | one or 2 at Landingville Dam and Marsh 8/14-17 (Thomas Buehl Jr., Tonia Jordan, Dave Rieger) |
| Black Tern | 2021 | Aug-Nov | Tioga | one at Webster Road 8/1 (Lisa Doud) |
| Black Tern | 2021 | Aug-Nov | Venango | one at Kahle Lake 8/17 and 9/1 (Jerry Stanley) |
| Black Tern | 2021 | Aug-Nov | York | singles at Gifford Pinchot SP 8/18 (David Arrow, Christian and Henry Schelbe) and Long Arm Reservoir 9/14 (Jacob Owings). |
| Black Tern | 2021 | Aug-Nov | Lancaster | 12 at Middle Creek WMA 8/12 (Alice Simmons) and at least 24 at Conejohela Flats 8/18 (Zach Millen) |
| Black Tern | 2022 | Jun-Jul | Crawford | 2 at Pymatuning SP-Miller's Ponds 6/19 and one there 6/28 (Isaac Field) |
| Black Tern | 2022 | Jun-Jul | Huntingdon | seen at Lake Perez 6/10 (Evan Tracy) |
| Black Tern | 2022 | Jun-Jul | Indiana | at Yellow Creek SP 7/31 (Jeff Kenney, Angela Romanczuk). |
| Black Tern | 2022 | Jun-Jul | Centre | one seen flying over Bald Eagle SP 6/7(Jon Kauffman) |
| Black Tern | 2023 | Mar-May | Chester | one at Struble Lake 4/30 (Zach Baer, m.ob.) |
| Black Tern | 2023 | Mar-May | Erie | two at Presque Isle State Park 5/22 (Chris Lundberg) |
| Black Tern | 2023 | Mar-May | Franklin | one at Antrim Commons Ponds 5/13 (Jessica Ferguson, Ron George, Tracy George-Snyder, Bob Kochert, Terry Kochert, Chris Payne, Rebeca Payne) |
| Black Tern | 2023 | Mar-May | Indiana | one at Yellow Creek State Park 5/7 (Eric Pilgram) and 5/15 (Garrett Strittmatter, Mark Strittmatter) |
| Black Tern | 2023 | Mar-May | Lycoming | one at Rose Valley Lake 5/16 (Bobby Brown, Deb Brown, Bob Brown, Rebecca Brown). |
| Black Tern | 2023 | Jun-Jul | Erie | one was observed flying over Eaton Reservoir on 6/8 (Ripley Kindervater) and two were over a private pond in Waterford on 6/24 (Jamie Hill) |
| Black Tern | 2023 | Jun-Jul | Franklin | made an evening stop at Antrim Commons Ponds 6/26 (Kyle Rambo) |
| Black Tern | 2023 | Jun-Jul | Huntingdon | two were found at Lake Perez 6/13-14 (m.ob.) |
| Black Tern | 2023 | Jun-Jul | Tioga | pictures taken of one resting on a buoy at the western end of Cowanesque Lake 6/15 (Dale and Karen Plumley). |