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23,941 species in Pennsylvania
Setophaga caerulescens
Anas crecca
Podilymbus podiceps
Setophaga palmarum
Setophaga citrina
Sturnella magna
Oxyura jamaicensis
Spizelloides arborea
Icterus spurius
Circus hudsonius
Troglodytes hiemalis
Mareca strepera
Coccyzus americanus
Zonotrichia leucophrys
Cygnus olor
Empidonax traillii
Setophaga pinus
Vireo flavifrons
Fulica americana
Tringa solitaria
Passerculus sandwichensis
Setophaga fusca
Spinus pinus
Mareca americana
Anser caerulescens
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