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23,941 species in Pennsylvania
Poecile atricapillus
Sialia sialis
Poecile carolinensis
Spizella passerina
Pipilo erythrophthalmus
Ardea herodias
Tachycineta bicolor
Molothrus ater
Geothlypis trichas
Sayornis phoebe
Vireo olivaceus
Mimus polyglottos
Troglodytes aedon
Bombycilla cedrorum
Hirundo rustica
Haliaeetus leucocephalus
Dryocopus pileatus
Megaceryle alcyon
Columba livia
Larus delawarensis
Chaetura pelagica
Hylocichla mustelina
Spizella pusilla
Icterus galbula
Charadrius vociferus
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