60 birds were recorded seen in Alabama in September in our iNaturalist sample; 9 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in September

Ruby-throated Hummingbird

Great Blue Heron

Northern Cardinal

Northern Mockingbird

Mourning Dove

Laughing Gull

Great Egret
Canada Goose
Eastern Bluebird

Carolina Wren
House Finch

Eastern Wood-Pewee
All birds seen in Alabama in September
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Ruby-throated Hummingbird | Archilochus colubris | Hummingbirds | 589 | Sep (peak) |
| 2 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 496 | Apr (past peak) |
| 3 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 421 | Apr (past peak) |
| 4 | Northern Mockingbird | Mimus polyglottos | Mockingbirds and Thrashers | 405 | Apr (past peak) |
| 5 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 388 | Apr (past peak) |
| 6 | Laughing Gull | Leucophaeus atricilla | Gulls, Terns, and Skimmers | 355 | Sep (peak) |
| 7 | Great Egret | Ardea alba | Herons, Egrets, and Bitterns | 254 | Sep (peak) |
| 8 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 237 | Apr (past peak) |
| 9 | Eastern Bluebird | Sialia sialis | Thrushes | 230 | Apr (past peak) |
| 10 | Carolina Wren | Thryothorus ludovicianus | Wrens | 202 | Apr (past peak) |
| 11 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 199 | Apr (past peak) |
| 12 | Eastern Wood-Pewee | Contopus virens | Tyrant Flycatchers | 196 | Sep (peak) |
| 13 | Tufted Titmouse | Baeolophus bicolor | Tits, Chickadees, and Titmice | 194 | Jan (past peak) |
| 14 | Summer Tanager | Piranga rubra | Cardinals and Allies | 189 | Apr (past peak) |
| 15 | Killdeer | Charadrius vociferus | Plovers and Lapwings | 187 | Apr (past peak) |
| 16 | Blue Jay | Cyanocitta cristata | Crows, Jays, and Magpies | 185 | Apr (past peak) |
| 17 | White-eyed Vireo | Vireo griseus | Vireos, Shrike-Babblers, and Erpornis | 181 | Apr (past peak) |
| 18 | Turkey Vulture | Cathartes aura | New World Vultures | 179 | Oct (rising) |
| 19 | Red-shouldered Hawk | Buteo lineatus | Hawks, Eagles, and Kites | 166 | Jan (past peak) |
| 20 | Red-bellied Woodpecker | Melanerpes carolinus | Woodpeckers | 166 | Apr (past peak) |
| 21 | Eastern Phoebe | Sayornis phoebe | Tyrant Flycatchers | 162 | Oct (rising) |
| 22 | Brown Pelican | Pelecanus occidentalis | Pelicans | 161 | Apr (past peak) |
| 23 | Magnolia Warbler | Setophaga magnolia | New World Warblers | 159 | Sep (peak) |
| 24 | Red-headed Woodpecker | Melanerpes erythrocephalus | Woodpeckers | 151 | May (past peak) |
| 25 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 148 | Jan (past peak) |
| 26 | Green Heron | Butorides virescens | Herons, Egrets, and Bitterns | 143 | Jun (past peak) |
| 27 | Sanderling | Calidris alba | Sandpipers and Allies | 138 | Apr (past peak) |
| 28 | Carolina Chickadee | Poecile carolinensis | Tits, Chickadees, and Titmice | 138 | Jan (past peak) |
| 29 | Downy Woodpecker | Dryobates pubescens | Woodpeckers | 137 | Jan (past peak) |
| 30 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 134 | Apr (past peak) |
| 31 | American Redstart | Setophaga ruticilla | New World Warblers | 131 | Sep (peak) |
| 32 | Common Yellowthroat | Geothlypis trichas | New World Warblers | 126 | Sep (peak) |
| 33 | Osprey | Pandion haliaetus | Ospreys | 119 | Apr (past peak) |
| 34 | Willet | Tringa semipalmata | Sandpipers and Allies | 119 | Apr (past peak) |
| 35 | Little Blue Heron | Egretta caerulea | Herons, Egrets, and Bitterns | 118 | Aug (past peak) |
| 36 | Tennessee Warbler | Leiothlypis peregrina | New World Warblers | 118 | Oct (rising) |
| 37 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 113 | Mar (past peak) |
| 38 | House Sparrow | Passer domesticus | Old World Sparrows | 111 | Apr (past peak) |
| 39 | Royal Tern | Thalasseus maximus | Gulls, Terns, and Skimmers | 110 | Sep (peak) |
| 40 | Brown Thrasher | Toxostoma rufum | Mockingbirds and Thrashers | 107 | Apr (past peak) |
| 41 | Pine Warbler | Setophaga pinus | New World Warblers | 104 | Jan (past peak) |
| 42 | White-breasted Nuthatch | Sitta carolinensis | Nuthatches | 102 | Jan (past peak) |
| 43 | Red-eyed Vireo | Vireo olivaceus | Vireos, Shrike-Babblers, and Erpornis | 101 | Apr (past peak) |
| 44 | Double-crested Cormorant | Nannopterum auritum | Cormorants and Shags | 100 | Nov (rising) |
| 45 | American Goldfinch | Spinus tristis | Finches, Euphonias, and Allies | 97 | Feb (past peak) |
| 46 | Black Vulture | Coragyps atratus | New World Vultures | 95 | Apr (past peak) |
| 47 | Yellow-crowned Night Heron | Nyctanassa violacea | Herons, Egrets, and Bitterns | 95 | Sep (peak) |
| 48 | Brown-headed Nuthatch | Sitta pusilla | Nuthatches | 94 | Jan (past peak) |
| 49 | Bald Eagle | Haliaeetus leucocephalus | Hawks, Eagles, and Kites | 86 | Jan (past peak) |
| 50 | Rose-breasted Grosbeak | Pheucticus ludovicianus | Cardinals and Allies | 86 | Apr (past peak) |