60 birds were recorded seen in Vermont in September in our iNaturalist sample; 6 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in September

Great Blue Heron

Black-capped Chickadee
Eastern Phoebe

Wild Turkey

Blue Jay

Black-throated Green Warbler

Song Sparrow
Common Yellowthroat

Wood Duck

Yellow-rumped Warbler

American Goldfinch

White-throated Sparrow
All birds seen in Vermont in September
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 504 | Aug (past peak) |
| 2 | Black-capped Chickadee | Poecile atricapillus | Tits, Chickadees, and Titmice | 342 | Apr (past peak) |
| 3 | Eastern Phoebe | Sayornis phoebe | Tyrant Flycatchers | 338 | May (past peak) |
| 4 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 312 | Apr (past peak) |
| 5 | Blue Jay | Cyanocitta cristata | Crows, Jays, and Magpies | 307 | May (past peak) |
| 6 | Black-throated Green Warbler | Setophaga virens | New World Warblers | 292 | Sep (peak) |
| 7 | Song Sparrow | Melospiza melodia | New World Sparrows | 284 | Apr (past peak) |
| 8 | Common Yellowthroat | Geothlypis trichas | New World Warblers | 282 | May (past peak) |
| 9 | Wood Duck | Aix sponsa | Ducks, Geese, and Swans | 269 | Apr (past peak) |
| 10 | Yellow-rumped Warbler | Setophaga coronata | New World Warblers | 262 | Oct (rising) |
| 11 | American Goldfinch | Spinus tristis | Finches, Euphonias, and Allies | 240 | Apr (past peak) |
| 12 | White-throated Sparrow | Zonotrichia albicollis | New World Sparrows | 218 | Oct (rising) |
| 13 | Great Egret | Ardea alba | Herons, Egrets, and Bitterns | 207 | Sep (peak) |
| 14 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 200 | Apr (past peak) |
| 15 | Bald Eagle | Haliaeetus leucocephalus | Hawks, Eagles, and Kites | 169 | Mar (past peak) |
| 16 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 169 | May (past peak) |
| 17 | Gray Catbird | Dumetella carolinensis | Mockingbirds and Thrashers | 167 | May (past peak) |
| 18 | Common Loon | Gavia immer | Loons | 166 | Jul (past peak) |
| 19 | Turkey Vulture | Cathartes aura | New World Vultures | 159 | Apr (past peak) |
| 20 | Northern Flicker | Colaptes auratus | Woodpeckers | 156 | Apr (past peak) |
| 21 | Red-eyed Vireo | Vireo olivaceus | Vireos, Shrike-Babblers, and Erpornis | 156 | May (past peak) |
| 22 | Cedar Waxwing | Bombycilla cedrorum | Waxwings | 150 | Jun (past peak) |
| 23 | Ruby-throated Hummingbird | Archilochus colubris | Hummingbirds | 147 | May (past peak) |
| 24 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 142 | Jan (past peak) |
| 25 | Magnolia Warbler | Setophaga magnolia | New World Warblers | 139 | Sep (peak) |
| 26 | Double-crested Cormorant | Nannopterum auritum | Cormorants and Shags | 132 | Apr (past peak) |
| 27 | Belted Kingfisher | Megaceryle alcyon | Kingfishers | 127 | Apr (past peak) |
| 28 | Broad-winged Hawk | Buteo platypterus | Hawks, Eagles, and Kites | 126 | May (past peak) |
| 29 | Ring-billed Gull | Larus delawarensis | Gulls, Terns, and Skimmers | 125 | Apr (past peak) |
| 30 | American Robin | Turdus migratorius | Thrushes | 125 | Apr (past peak) |
| 31 | Hairy Woodpecker | Leuconotopicus villosus | Woodpeckers | 124 | Apr (past peak) |
| 32 | Yellow-bellied Sapsucker | Sphyrapicus varius | Woodpeckers | 120 | Apr (past peak) |
| 33 | Downy Woodpecker | Dryobates pubescens | Woodpeckers | 118 | Apr (past peak) |
| 34 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 117 | Apr (past peak) |
| 35 | White-breasted Nuthatch | Sitta carolinensis | Nuthatches | 116 | Apr (past peak) |
| 36 | Barred Owl | Strix varia | Typical Owls | 116 | Mar (past peak) |
| 37 | Blue-headed Vireo | Vireo solitarius | Vireos, Shrike-Babblers, and Erpornis | 115 | May (past peak) |
| 38 | Tennessee Warbler | Leiothlypis peregrina | New World Warblers | 115 | Sep (peak) |
| 39 | Lincoln's Sparrow | Melospiza lincolnii | New World Sparrows | 112 | Sep (peak) |
| 40 | Solitary Sandpiper | Tringa solitaria | Sandpipers and Allies | 110 | May (past peak) |
| 41 | Hermit Thrush | Catharus guttatus | Thrushes | 105 | Apr (past peak) |
| 42 | Red-breasted Nuthatch | Sitta canadensis | Nuthatches | 99 | Apr (past peak) |
| 43 | Pileated Woodpecker | Dryocopus pileatus | Woodpeckers | 99 | Apr (past peak) |
| 44 | Scarlet Tanager | Piranga olivacea | Cardinals and Allies | 91 | May (past peak) |
| 45 | Ruby-crowned Kinglet | Corthylio calendula | Kinglets | 91 | Apr (past peak) |
| 46 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 89 | Apr (past peak) |
| 47 | Common Merganser | Mergus merganser | Ducks, Geese, and Swans | 88 | Apr (past peak) |
| 48 | American Crow | Corvus brachyrhynchos | Crows, Jays, and Magpies | 85 | Mar (past peak) |
| 49 | Nashville Warbler | Leiothlypis ruficapilla | New World Warblers | 84 | May (past peak) |
| 50 | Bay-breasted Warbler | Setophaga castanea | New World Warblers | 82 | Sep (peak) |