References

Atlas of Breeding Birds in Pennsylvania
Dan Brauning

University of Pittsburgh Press
1992
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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 Delaware County Pennsylvania
Nick Pulcinella

Bird Club of Delaware County
1999
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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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Taylor Memorial Arboretum
Stevens Heckscher
Pennsylvania Birds 1:75
PSO
1987
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Tyler Arboretum
Al Guarente
Pennsylvania Birds 4:95
PSO
1990
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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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