60 birds were recorded seen in Nebraska in May in our iNaturalist sample; 46 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

Baltimore Oriole

Northern Cardinal
Red-winged Blackbird

Common Grackle

American Goldfinch
Canada Goose

House Sparrow
House Finch

Blue Jay

Mourning Dove

Mallard
All birds seen in Nebraska in May
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | American Robin | Turdus migratorius | Thrushes | 848 | May (peak) |
| 2 | Baltimore Oriole | Icterus galbula | New World Blackbirds and Orioles | 637 | May (peak) |
| 3 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 540 | May (peak) |
| 4 | Red-winged Blackbird | Agelaius phoeniceus | New World Blackbirds and Orioles | 526 | May (peak) |
| 5 | Common Grackle | Quiscalus quiscula | New World Blackbirds and Orioles | 484 | May (peak) |
| 6 | American Goldfinch | Spinus tristis | Finches, Euphonias, and Allies | 483 | May (peak) |
| 7 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 421 | May (peak) |
| 8 | House Sparrow | Passer domesticus | Old World Sparrows | 388 | May (peak) |
| 9 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 372 | May (peak) |
| 10 | Blue Jay | Cyanocitta cristata | Crows, Jays, and Magpies | 346 | May (peak) |
| 11 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 343 | May (peak) |
| 12 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 343 | May (peak) |
| 13 | Eastern Kingbird | Tyrannus tyrannus | Tyrant Flycatchers | 338 | May (peak) |
| 14 | Brown-headed Cowbird | Molothrus ater | New World Blackbirds and Orioles | 337 | May (peak) |
| 15 | Northern Yellow Warbler | Setophaga aestiva | New World Warblers | 329 | May (peak) |
| 16 | Rose-breasted Grosbeak | Pheucticus ludovicianus | Cardinals and Allies | 293 | May (peak) |
| 17 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 278 | May (peak) |
| 18 | Gray Catbird | Dumetella carolinensis | Mockingbirds and Thrashers | 274 | May (peak) |
| 19 | Northern House Wren | Troglodytes aedon | Wrens | 230 | May (peak) |
| 20 | Orchard Oriole | Icterus spurius | New World Blackbirds and Orioles | 230 | May (peak) |
| 21 | Downy Woodpecker | Dryobates pubescens | Woodpeckers | 224 | May (peak) |
| 22 | Barn Swallow | Hirundo rustica | Swallows and Martins | 212 | May (peak) |
| 23 | Red-headed Woodpecker | Melanerpes erythrocephalus | Woodpeckers | 208 | May (peak) |
| 24 | Brown Thrasher | Toxostoma rufum | Mockingbirds and Thrashers | 198 | May (peak) |
| 25 | Swainson's Thrush | Catharus ustulatus | Thrushes | 191 | May (peak) |
| 26 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 189 | May (peak) |
| 27 | Red-bellied Woodpecker | Melanerpes carolinus | Woodpeckers | 187 | May (peak) |
| 28 | Chipping Sparrow | Spizella passerina | New World Sparrows | 183 | May (peak) |
| 29 | Turkey Vulture | Cathartes aura | New World Vultures | 181 | May (peak) |
| 30 | Western Kingbird | Tyrannus verticalis | Tyrant Flycatchers | 178 | May (peak) |
| 31 | Killdeer | Charadrius vociferus | Plovers and Lapwings | 176 | May (peak) |
| 32 | European Starling | Sturnus vulgaris | Starlings | 158 | May (peak) |
| 33 | Lark Sparrow | Chondestes grammacus | New World Sparrows | 147 | May (peak) |
| 34 | Indigo Bunting | Passerina cyanea | Cardinals and Allies | 143 | May (peak) |
| 35 | Blue-winged Teal | Spatula discors | Ducks, Geese, and Swans | 142 | Apr (past peak) |
| 36 | Northern Flicker | Colaptes auratus | Woodpeckers | 135 | May (peak) |
| 37 | Ruby-throated Hummingbird | Archilochus colubris | Hummingbirds | 132 | Sep (rising) |
| 38 | Dickcissel | Spiza americana | Cardinals and Allies | 132 | Jun (rising) |
| 39 | Eurasian Collared-Dove | Streptopelia decaocto | Pigeons and Doves | 130 | May (peak) |
| 40 | Yellow-rumped Warbler | Setophaga coronata | New World Warblers | 124 | May (peak) |
| 41 | Common Yellowthroat | Geothlypis trichas | New World Warblers | 123 | May (peak) |
| 42 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 122 | May (peak) |
| 43 | White-breasted Nuthatch | Sitta carolinensis | Nuthatches | 122 | May (peak) |
| 44 | American Redstart | Setophaga ruticilla | New World Warblers | 121 | May (peak) |
| 45 | Wood Duck | Aix sponsa | Ducks, Geese, and Swans | 115 | May (peak) |
| 46 | Eastern Bluebird | Sialia sialis | Thrushes | 106 | May (peak) |
| 47 | Bald Eagle | Haliaeetus leucocephalus | Hawks, Eagles, and Kites | 100 | Feb (past peak) |
| 48 | Eastern Warbling Vireo | Vireo gilvus | Vireos, Shrike-Babblers, and Erpornis | 100 | May (peak) |
| 49 | Spotted Sandpiper | Actitis macularius | Sandpipers and Allies | 100 | May (peak) |
| 50 | Black-capped Chickadee | Poecile atricapillus | Tits, Chickadees, and Titmice | 95 | May (peak) |