60 birds were recorded seen in Arizona in September in our iNaturalist sample; 2 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in September
Anna's Hummingbird

Turkey Vulture

Vermilion Flycatcher

Mourning Dove

Great-tailed Grackle
Broad-billed Hummingbird

Cooper's Hawk

Gila Woodpecker
Gambel's Quail
Lesser Goldfinch

Greater Roadrunner

Curve-billed Thrasher
All birds seen in Arizona in September
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Anna's Hummingbird | Calypte anna | Hummingbirds | 674 | Mar (past peak) |
| 2 | Turkey Vulture | Cathartes aura | New World Vultures | 669 | Apr (past peak) |
| 3 | Vermilion Flycatcher | Pyrocephalus rubinus | Tyrant Flycatchers | 583 | Apr (past peak) |
| 4 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 508 | Apr (past peak) |
| 5 | Great-tailed Grackle | Quiscalus mexicanus | New World Blackbirds and Orioles | 506 | Apr (past peak) |
| 6 | Broad-billed Hummingbird | Cynanthus latirostris | Hummingbirds | 493 | Aug (past peak) |
| 7 | Cooper's Hawk | Astur cooperii | Hawks, Eagles, and Kites | 486 | Mar (past peak) |
| 8 | Gila Woodpecker | Melanerpes uropygialis | Woodpeckers | 485 | Apr (past peak) |
| 9 | Gambel's Quail | Callipepla gambelii | New World Quails | 481 | Apr (past peak) |
| 10 | Lesser Goldfinch | Spinus psaltria | Finches, Euphonias, and Allies | 452 | Apr (past peak) |
| 11 | Greater Roadrunner | Geococcyx californianus | Cuckoos | 444 | Aug (past peak) |
| 12 | Curve-billed Thrasher | Toxostoma curvirostre | Mockingbirds and Thrashers | 423 | Apr (past peak) |
| 13 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 421 | Apr (past peak) |
| 14 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 413 | Jan (past peak) |
| 15 | Black-chinned Hummingbird | Archilochus alexandri | Hummingbirds | 413 | Aug (past peak) |
| 16 | Common Raven | Corvus corax | Crows, Jays, and Magpies | 403 | Mar (past peak) |
| 17 | Acorn Woodpecker | Melanerpes formicivorus | Woodpeckers | 398 | May (past peak) |
| 18 | Western Tanager | Piranga ludoviciana | Cardinals and Allies | 356 | May (past peak) |
| 19 | Wilson's Warbler | Cardellina pusilla | New World Warblers | 331 | May (past peak) |
| 20 | Rivoli's Hummingbird | Eugenes fulgens | Hummingbirds | 324 | Aug (past peak) |
| 21 | Chipping Sparrow | Spizella passerina | New World Sparrows | 309 | Apr (past peak) |
| 22 | Verdin | Auriparus flaviceps | Penduline-Tits | 306 | Apr (past peak) |
| 23 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 303 | May (past peak) |
| 24 | Cactus Wren | Campylorhynchus brunneicapillus | Wrens | 283 | Apr (past peak) |
| 25 | Brewer's Sparrow | Spizella breweri | New World Sparrows | 282 | Apr (past peak) |
| 26 | Black Phoebe | Sayornis nigricans | Tyrant Flycatchers | 282 | Jan (past peak) |
| 27 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 278 | Apr (past peak) |
| 28 | Mexican Jay | Aphelocoma wollweberi | Crows, Jays, and Magpies | 264 | May (past peak) |
| 29 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 257 | Apr (past peak) |
| 30 | Great Horned Owl | Bubo virginianus | Typical Owls | 257 | Apr (past peak) |
| 31 | Woodhouse's Scrub-Jay | Aphelocoma woodhouseii | Crows, Jays, and Magpies | 243 | Mar (past peak) |
| 32 | American Kestrel | Falco sparverius | Falcons and Caracaras | 242 | Jan (past peak) |
| 33 | Rufous Hummingbird | Selasphorus rufus | Hummingbirds | 237 | Aug (past peak) |
| 34 | White-breasted Nuthatch | Sitta carolinensis | Nuthatches | 235 | Aug (past peak) |
| 35 | Black-throated Sparrow | Amphispiza bilineata | New World Sparrows | 231 | Mar (past peak) |
| 36 | Say's Phoebe | Sayornis saya | Tyrant Flycatchers | 224 | Jan (past peak) |
| 37 | Northern Mockingbird | Mimus polyglottos | Mockingbirds and Thrashers | 223 | Apr (past peak) |
| 38 | Abert's Towhee | Melozone aberti | New World Sparrows | 221 | Apr (past peak) |
| 39 | Green-tailed Towhee | Pipilo chlorurus | New World Sparrows | 220 | Apr (past peak) |
| 40 | Steller's Jay | Cyanocitta stelleri | Crows, Jays, and Magpies | 219 | May (past peak) |
| 41 | Western Wood-Pewee | Contopus sordidulus | Tyrant Flycatchers | 212 | May (past peak) |
| 42 | Orange-crowned Warbler | Leiothlypis celata | New World Warblers | 212 | Jan (past peak) |
| 43 | Western Warbling Vireo | Vireo swainsoni | Vireos, Shrike-Babblers, and Erpornis | 207 | Sep (peak) |
| 44 | Eurasian Collared-Dove | Streptopelia decaocto | Pigeons and Doves | 204 | Apr (past peak) |
| 45 | American Coot | Fulica americana | Rails, Gallinules, and Coots | 201 | Mar (past peak) |
| 46 | Blue Grosbeak | Passerina caerulea | Cardinals and Allies | 197 | Aug (past peak) |
| 47 | House Sparrow | Passer domesticus | Old World Sparrows | 195 | Apr (past peak) |
| 48 | Black-headed Grosbeak | Pheucticus melanocephalus | Cardinals and Allies | 194 | May (past peak) |
| 49 | MacGillivray's Warbler | Geothlypis tolmiei | New World Warblers | 194 | Sep (peak) |
| 50 | Western Bluebird | Sialia mexicana | Thrushes | 191 | Jan (past peak) |