60 birds were recorded seen in Alabama in April in our iNaturalist sample; 38 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in April

Northern Cardinal

American Robin

Northern Mockingbird

Great Blue Heron
Eastern Bluebird
Canada Goose

Mourning Dove

Rose-breasted Grosbeak

Blue Jay
Brown Thrasher
Red-bellied Woodpecker

Mallard
All birds seen in Alabama in April
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 938 | Apr (peak) |
| 2 | American Robin | Turdus migratorius | Thrushes | 779 | Apr (peak) |
| 3 | Northern Mockingbird | Mimus polyglottos | Mockingbirds and Thrashers | 764 | Apr (peak) |
| 4 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 574 | Apr (peak) |
| 5 | Eastern Bluebird | Sialia sialis | Thrushes | 524 | Apr (peak) |
| 6 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 488 | Apr (peak) |
| 7 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 458 | Apr (peak) |
| 8 | Rose-breasted Grosbeak | Pheucticus ludovicianus | Cardinals and Allies | 439 | Apr (peak) |
| 9 | Blue Jay | Cyanocitta cristata | Crows, Jays, and Magpies | 381 | Apr (peak) |
| 10 | Brown Thrasher | Toxostoma rufum | Mockingbirds and Thrashers | 371 | Apr (peak) |
| 11 | Red-bellied Woodpecker | Melanerpes carolinus | Woodpeckers | 361 | Apr (peak) |
| 12 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 323 | Apr (peak) |
| 13 | Indigo Bunting | Passerina cyanea | Cardinals and Allies | 315 | Apr (peak) |
| 14 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 314 | Apr (peak) |
| 15 | House Sparrow | Passer domesticus | Old World Sparrows | 307 | Apr (peak) |
| 16 | Carolina Wren | Thryothorus ludovicianus | Wrens | 304 | Apr (peak) |
| 17 | Laughing Gull | Leucophaeus atricilla | Gulls, Terns, and Skimmers | 289 | Sep (rising) |
| 18 | Red-winged Blackbird | Agelaius phoeniceus | New World Blackbirds and Orioles | 270 | Apr (peak) |
| 19 | Brown-headed Cowbird | Molothrus ater | New World Blackbirds and Orioles | 263 | Apr (peak) |
| 20 | Eastern Phoebe | Sayornis phoebe | Tyrant Flycatchers | 263 | Oct (rising) |
| 21 | Killdeer | Charadrius vociferus | Plovers and Lapwings | 262 | Apr (peak) |
| 22 | Summer Tanager | Piranga rubra | Cardinals and Allies | 254 | Apr (peak) |
| 23 | Chipping Sparrow | Spizella passerina | New World Sparrows | 252 | Jan (past peak) |
| 24 | Brown Pelican | Pelecanus occidentalis | Pelicans | 241 | Apr (peak) |
| 25 | Eastern Kingbird | Tyrannus tyrannus | Tyrant Flycatchers | 241 | Apr (peak) |
| 26 | Eastern Towhee | Pipilo erythrophthalmus | New World Sparrows | 222 | Apr (peak) |
| 27 | American Goldfinch | Spinus tristis | Finches, Euphonias, and Allies | 220 | Feb (past peak) |
| 28 | Tufted Titmouse | Baeolophus bicolor | Tits, Chickadees, and Titmice | 206 | Jan (past peak) |
| 29 | Common Grackle | Quiscalus quiscula | New World Blackbirds and Orioles | 201 | Apr (peak) |
| 30 | Red-headed Woodpecker | Melanerpes erythrocephalus | Woodpeckers | 196 | May (rising) |
| 31 | Osprey | Pandion haliaetus | Ospreys | 196 | Apr (peak) |
| 32 | Blue Grosbeak | Passerina caerulea | Cardinals and Allies | 189 | Apr (peak) |
| 33 | Green Heron | Butorides virescens | Herons, Egrets, and Bitterns | 188 | Jun (rising) |
| 34 | Prothonotary Warbler | Protonotaria citrea | New World Warblers | 188 | Apr (peak) |
| 35 | Downy Woodpecker | Dryobates pubescens | Woodpeckers | 186 | Jan (past peak) |
| 36 | White-eyed Vireo | Vireo griseus | Vireos, Shrike-Babblers, and Erpornis | 183 | Apr (peak) |
| 37 | Scarlet Tanager | Piranga olivacea | Cardinals and Allies | 181 | Apr (peak) |
| 38 | European Starling | Sturnus vulgaris | Starlings | 173 | Apr (peak) |
| 39 | Palm Warbler | Setophaga palmarum | New World Warblers | 170 | Apr (peak) |
| 40 | Blue-gray Gnatcatcher | Polioptila caerulea | Gnatcatchers and Gnatwrens | 169 | Apr (peak) |
| 41 | Carolina Chickadee | Poecile carolinensis | Tits, Chickadees, and Titmice | 166 | Jan (past peak) |
| 42 | Sanderling | Calidris alba | Sandpipers and Allies | 150 | Apr (peak) |
| 43 | Orchard Oriole | Icterus spurius | New World Blackbirds and Orioles | 148 | Apr (peak) |
| 44 | Gray Catbird | Dumetella carolinensis | Mockingbirds and Thrashers | 148 | Apr (peak) |
| 45 | Hooded Warbler | Setophaga citrina | New World Warblers | 147 | Apr (peak) |
| 46 | Yellow-rumped Warbler | Setophaga coronata | New World Warblers | 144 | Jan (past peak) |
| 47 | Turkey Vulture | Cathartes aura | New World Vultures | 142 | Oct (rising) |
| 48 | Great Crested Flycatcher | Myiarchus crinitus | Tyrant Flycatchers | 142 | May (rising) |
| 49 | Barn Swallow | Hirundo rustica | Swallows and Martins | 138 | Apr (peak) |
| 50 | Barred Owl | Strix varia | Typical Owls | 137 | Apr (peak) |