60 birds were recorded seen in Alabama in May in our iNaturalist sample; 3 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in May

Northern Cardinal

Great Blue Heron
Eastern Bluebird

Northern Mockingbird
Canada Goose
House Finch
Brown Thrasher

Mourning Dove
Red-bellied Woodpecker

Blue Jay
Red-winged Blackbird

Summer Tanager
All birds seen in Alabama in May
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 609 | Apr (past peak) |
| 2 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 525 | Apr (past peak) |
| 3 | Eastern Bluebird | Sialia sialis | Thrushes | 386 | Apr (past peak) |
| 4 | Northern Mockingbird | Mimus polyglottos | Mockingbirds and Thrashers | 381 | Apr (past peak) |
| 5 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 310 | Apr (past peak) |
| 6 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 304 | Apr (past peak) |
| 7 | Brown Thrasher | Toxostoma rufum | Mockingbirds and Thrashers | 289 | Apr (past peak) |
| 8 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 287 | Apr (past peak) |
| 9 | Red-bellied Woodpecker | Melanerpes carolinus | Woodpeckers | 286 | Apr (past peak) |
| 10 | Blue Jay | Cyanocitta cristata | Crows, Jays, and Magpies | 271 | Apr (past peak) |
| 11 | Red-winged Blackbird | Agelaius phoeniceus | New World Blackbirds and Orioles | 247 | Apr (past peak) |
| 12 | Summer Tanager | Piranga rubra | Cardinals and Allies | 246 | Apr (past peak) |
| 13 | Carolina Wren | Thryothorus ludovicianus | Wrens | 242 | Apr (past peak) |
| 14 | Downy Woodpecker | Dryobates pubescens | Woodpeckers | 233 | Jan (past peak) |
| 15 | American Robin | Turdus migratorius | Thrushes | 231 | Apr (past peak) |
| 16 | Red-headed Woodpecker | Melanerpes erythrocephalus | Woodpeckers | 228 | May (peak) |
| 17 | Indigo Bunting | Passerina cyanea | Cardinals and Allies | 225 | Apr (past peak) |
| 18 | Eastern Phoebe | Sayornis phoebe | Tyrant Flycatchers | 222 | Oct (rising) |
| 19 | Laughing Gull | Leucophaeus atricilla | Gulls, Terns, and Skimmers | 205 | Sep (rising) |
| 20 | Eastern Kingbird | Tyrannus tyrannus | Tyrant Flycatchers | 192 | Apr (past peak) |
| 21 | Osprey | Pandion haliaetus | Ospreys | 186 | Apr (past peak) |
| 22 | Brown-headed Cowbird | Molothrus ater | New World Blackbirds and Orioles | 184 | Apr (past peak) |
| 23 | Brown Pelican | Pelecanus occidentalis | Pelicans | 178 | Apr (past peak) |
| 24 | Killdeer | Charadrius vociferus | Plovers and Lapwings | 175 | Apr (past peak) |
| 25 | Green Heron | Butorides virescens | Herons, Egrets, and Bitterns | 174 | Jun (rising) |
| 26 | Tufted Titmouse | Baeolophus bicolor | Tits, Chickadees, and Titmice | 162 | Jan (past peak) |
| 27 | Great Crested Flycatcher | Myiarchus crinitus | Tyrant Flycatchers | 152 | May (peak) |
| 28 | Common Grackle | Quiscalus quiscula | New World Blackbirds and Orioles | 151 | Apr (past peak) |
| 29 | Rose-breasted Grosbeak | Pheucticus ludovicianus | Cardinals and Allies | 148 | Apr (past peak) |
| 30 | House Sparrow | Passer domesticus | Old World Sparrows | 147 | Apr (past peak) |
| 31 | Eastern Towhee | Pipilo erythrophthalmus | New World Sparrows | 146 | Apr (past peak) |
| 32 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 138 | Apr (past peak) |
| 33 | Barn Swallow | Hirundo rustica | Swallows and Martins | 135 | Apr (past peak) |
| 34 | Blue Grosbeak | Passerina caerulea | Cardinals and Allies | 135 | Apr (past peak) |
| 35 | Great Egret | Ardea alba | Herons, Egrets, and Bitterns | 130 | Sep (rising) |
| 36 | Carolina Chickadee | Poecile carolinensis | Tits, Chickadees, and Titmice | 123 | Jan (past peak) |
| 37 | Ruby-throated Hummingbird | Archilochus colubris | Hummingbirds | 119 | Sep (rising) |
| 38 | Orchard Oriole | Icterus spurius | New World Blackbirds and Orioles | 119 | Apr (past peak) |
| 39 | Sanderling | Calidris alba | Sandpipers and Allies | 118 | Apr (past peak) |
| 40 | Turkey Vulture | Cathartes aura | New World Vultures | 114 | Oct (rising) |
| 41 | Chipping Sparrow | Spizella passerina | New World Sparrows | 114 | Jan (past peak) |
| 42 | White-breasted Nuthatch | Sitta carolinensis | Nuthatches | 111 | Jan (past peak) |
| 43 | Black Vulture | Coragyps atratus | New World Vultures | 110 | Apr (past peak) |
| 44 | Barred Owl | Strix varia | Typical Owls | 109 | Apr (past peak) |
| 45 | American Goldfinch | Spinus tristis | Finches, Euphonias, and Allies | 106 | Feb (past peak) |
| 46 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 105 | Mar (past peak) |
| 47 | European Starling | Sturnus vulgaris | Starlings | 96 | Apr (past peak) |
| 48 | Red-shouldered Hawk | Buteo lineatus | Hawks, Eagles, and Kites | 95 | Jan (past peak) |
| 49 | Yellow-breasted Chat | Icteria virens | Yellow-breasted Chats | 90 | May (peak) |
| 50 | White-eyed Vireo | Vireo griseus | Vireos, Shrike-Babblers, and Erpornis | 90 | Apr (past peak) |