References
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A Century of Bird Life in Berks County, PA
William D. Uhrich
Reading Public Museum
1997
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Atlas of Breeding Birds in Pennsylvania
Dan Brauning
University of Pittsburgh Press
1992
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Marsh Meadow Mountain. Natural Places of the Delaware Valley
J J Harding
Temple University Press
1986
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Birding the Delaware Valley Region
J J Harding
Temple University Press
1980
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The Birds of Pennsylvania
G McWilliams and D Brauning
Cornell University Press
2000
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Birds of the Lehigh Valley and Vicinity
Saenger and Malt and Crilley
Lehigh Valley Audubon Society
2002
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Annotated List of the Birds of Pennsylvania
Santner and Brauning and Schwalbe and Schwalbe
Pennsylvania Biological Survey
1992
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Carr's Recreation Park
Ken Lebo
Pennsylvania Birds 10:143
PSO
1996
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Lake Ontelaunee
Matthew Spence
Pennsylvania Birds 5:13
PSO
1991
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State Game Lands #110
Kerry Grim
Pennsylvania Birds 5:68
PSO
1991
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Annotated List of the Birds of Pennsylvania - Second Edition
Franklin Haas and Barbara Haas
Pennsylvania Biological Survey
2005
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Second Atlas of Breeding Birds in Pennsylvaniua
Andrew Wilson, Daniel Brauning, and Robert Mulvihill
The Pennsylvania State University Press
2012
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