60 birds were recorded seen in Pennsylvania in May in our iNaturalist sample; 21 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in May
American Robin
Gray Catbird
Red-winged Blackbird
Northern Cardinal
Canada Goose
Baltimore Oriole
House Sparrow
Blue Jay
Tree Swallow
Mourning Dove
Song Sparrow
Mallard
All birds seen in Pennsylvania in May
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | American Robin | Turdus migratorius | Thrushes | 3,404 | Apr (past peak) |
| 2 | Gray Catbird | Dumetella carolinensis | Mockingbirds and Thrashers | 2,945 | May (peak) |
| 3 | Red-winged Blackbird | Agelaius phoeniceus | New World Blackbirds and Orioles | 2,266 | Apr (past peak) |
| 4 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 1,855 | Apr (past peak) |
| 5 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 1,815 | Apr (past peak) |
| 6 | Baltimore Oriole | Icterus galbula | New World Blackbirds and Orioles | 1,600 | May (peak) |
| 7 | House Sparrow | Passer domesticus | Old World Sparrows | 1,424 | Apr (past peak) |
| 8 | Blue Jay | Cyanocitta cristata | Crows, Jays, and Magpies | 1,338 | May (peak) |
| 9 | Tree Swallow | Tachycineta bicolor | Swallows and Martins | 1,328 | May (peak) |
| 10 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 1,309 | Apr (past peak) |
| 11 | Song Sparrow | Melospiza melodia | New World Sparrows | 1,307 | Apr (past peak) |
| 12 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 1,296 | Apr (past peak) |
| 13 | European Starling | Sturnus vulgaris | Starlings | 1,266 | May (peak) |
| 14 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 1,202 | Apr (past peak) |
| 15 | Common Grackle | Quiscalus quiscula | New World Blackbirds and Orioles | 1,173 | May (peak) |
| 16 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 979 | Aug (rising) |
| 17 | Eastern Bluebird | Sialia sialis | Thrushes | 973 | Apr (past peak) |
| 18 | Northern Yellow Warbler | Setophaga aestiva | New World Warblers | 916 | May (peak) |
| 19 | Rose-breasted Grosbeak | Pheucticus ludovicianus | Cardinals and Allies | 908 | May (peak) |
| 20 | Ovenbird | Seiurus aurocapilla | New World Warblers | 895 | May (peak) |
| 21 | American Goldfinch | Spinus tristis | Finches, Euphonias, and Allies | 862 | Aug (rising) |
| 22 | Chipping Sparrow | Spizella passerina | New World Sparrows | 840 | Apr (past peak) |
| 23 | Common Yellowthroat | Geothlypis trichas | New World Warblers | 823 | May (peak) |
| 24 | Scarlet Tanager | Piranga olivacea | Cardinals and Allies | 809 | May (peak) |
| 25 | Brown-headed Cowbird | Molothrus ater | New World Blackbirds and Orioles | 798 | Apr (past peak) |
| 26 | Wood Thrush | Hylocichla mustelina | Thrushes | 786 | May (peak) |
| 27 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 785 | Oct (rising) |
| 28 | Red-bellied Woodpecker | Melanerpes carolinus | Woodpeckers | 752 | Apr (past peak) |
| 29 | Turkey Vulture | Cathartes aura | New World Vultures | 733 | Apr (past peak) |
| 30 | Eastern Towhee | Pipilo erythrophthalmus | New World Sparrows | 667 | Apr (past peak) |
| 31 | Indigo Bunting | Passerina cyanea | Cardinals and Allies | 656 | May (peak) |
| 32 | Eastern Kingbird | Tyrannus tyrannus | Tyrant Flycatchers | 655 | May (peak) |
| 33 | American Redstart | Setophaga ruticilla | New World Warblers | 646 | May (peak) |
| 34 | Barn Swallow | Hirundo rustica | Swallows and Martins | 624 | May (peak) |
| 35 | Bald Eagle | Haliaeetus leucocephalus | Hawks, Eagles, and Kites | 604 | Apr (past peak) |
| 36 | Black-and-white Warbler | Mniotilta varia | New World Warblers | 568 | May (peak) |
| 37 | Eastern Phoebe | Sayornis phoebe | Tyrant Flycatchers | 561 | Apr (past peak) |
| 38 | Pileated Woodpecker | Dryocopus pileatus | Woodpeckers | 557 | May (peak) |
| 39 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 551 | Apr (past peak) |
| 40 | Red-eyed Vireo | Vireo olivaceus | Vireos, Shrike-Babblers, and Erpornis | 540 | May (peak) |
| 41 | Downy Woodpecker | Dryobates pubescens | Woodpeckers | 539 | Apr (past peak) |
| 42 | Cedar Waxwing | Bombycilla cedrorum | Waxwings | 520 | May (peak) |
| 43 | Northern House Wren | Troglodytes aedon | Wrens | 514 | May (peak) |
| 44 | Ruby-throated Hummingbird | Archilochus colubris | Hummingbirds | 507 | Aug (rising) |
| 45 | Northern Mockingbird | Mimus polyglottos | Mockingbirds and Thrashers | 493 | Apr (past peak) |
| 46 | Northern Flicker | Colaptes auratus | Woodpeckers | 491 | Apr (past peak) |
| 47 | Carolina Wren | Thryothorus ludovicianus | Wrens | 472 | Apr (past peak) |
| 48 | Osprey | Pandion haliaetus | Ospreys | 470 | Aug (rising) |
| 49 | Yellow-rumped Warbler | Setophaga coronata | New World Warblers | 456 | Oct (rising) |
| 50 | Killdeer | Charadrius vociferus | Plovers and Lapwings | 433 | Apr (past peak) |