60 birds were recorded seen in Nevada in September in our iNaturalist sample; 7 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in September

Mallard

Great-tailed Grackle
Canada Goose
American Coot

Cooper's Hawk

White-crowned Sparrow

Red-tailed Hawk

Greater Roadrunner

Orange-crowned Warbler

Mourning Dove
House Finch
Lesser Goldfinch
All birds seen in Nevada in September
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 220 | Apr (past peak) |
| 2 | Great-tailed Grackle | Quiscalus mexicanus | New World Blackbirds and Orioles | 210 | Apr (past peak) |
| 3 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 163 | Apr (past peak) |
| 4 | American Coot | Fulica americana | Rails, Gallinules, and Coots | 162 | Dec (rising) |
| 5 | Cooper's Hawk | Astur cooperii | Hawks, Eagles, and Kites | 159 | Jul (past peak) |
| 6 | White-crowned Sparrow | Zonotrichia leucophrys | New World Sparrows | 153 | Oct (rising) |
| 7 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 150 | Jan (past peak) |
| 8 | Greater Roadrunner | Geococcyx californianus | Cuckoos | 139 | Oct (rising) |
| 9 | Orange-crowned Warbler | Leiothlypis celata | New World Warblers | 139 | Sep (peak) |
| 10 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 138 | May (past peak) |
| 11 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 130 | Apr (past peak) |
| 12 | Lesser Goldfinch | Spinus psaltria | Finches, Euphonias, and Allies | 127 | Sep (peak) |
| 13 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 116 | Dec (rising) |
| 14 | Turkey Vulture | Cathartes aura | New World Vultures | 105 | Apr (past peak) |
| 15 | Black Phoebe | Sayornis nigricans | Tyrant Flycatchers | 102 | Sep (peak) |
| 16 | Steller's Jay | Cyanocitta stelleri | Crows, Jays, and Magpies | 101 | Sep (peak) |
| 17 | Western Wood-Pewee | Contopus sordidulus | Tyrant Flycatchers | 94 | May (past peak) |
| 18 | White-faced Ibis | Plegadis chihi | Ibises and Spoonbills | 93 | May (past peak) |
| 19 | Black-crowned Night Heron | Nycticorax nycticorax | Herons, Egrets, and Bitterns | 93 | Jan (past peak) |
| 20 | Snowy Egret | Egretta thula | Herons, Egrets, and Bitterns | 92 | Sep (peak) |
| 21 | Great Egret | Ardea alba | Herons, Egrets, and Bitterns | 92 | Jan (past peak) |
| 22 | Pied-billed Grebe | Podilymbus podiceps | Grebes | 90 | Jan (past peak) |
| 23 | Gambel's Quail | Callipepla gambelii | New World Quails | 88 | Apr (past peak) |
| 24 | Common Raven | Corvus corax | Crows, Jays, and Magpies | 87 | May (past peak) |
| 25 | Say's Phoebe | Sayornis saya | Tyrant Flycatchers | 85 | Mar (past peak) |
| 26 | Anna's Hummingbird | Calypte anna | Hummingbirds | 84 | Mar (past peak) |
| 27 | Mountain Chickadee | Poecile gambeli | Tits, Chickadees, and Titmice | 82 | Aug (past peak) |
| 28 | Ruddy Duck | Oxyura jamaicensis | Ducks, Geese, and Swans | 80 | Mar (past peak) |
| 29 | Northern Mockingbird | Mimus polyglottos | Mockingbirds and Thrashers | 79 | Dec (rising) |
| 30 | Great Horned Owl | Bubo virginianus | Typical Owls | 77 | May (past peak) |
| 31 | Western Tanager | Piranga ludoviciana | Cardinals and Allies | 75 | May (past peak) |
| 32 | Clark's Nutcracker | Nucifraga columbiana | Crows, Jays, and Magpies | 74 | Jul (past peak) |
| 33 | Brewer's Sparrow | Spizella breweri | New World Sparrows | 74 | Sep (peak) |
| 34 | Verdin | Auriparus flaviceps | Penduline-Tits | 73 | Mar (past peak) |
| 35 | Phainopepla | Phainopepla nitens | Silky-flycatchers | 73 | Mar (past peak) |
| 36 | California Scrub-Jay | Aphelocoma californica | Crows, Jays, and Magpies | 73 | May (past peak) |
| 37 | American Avocet | Recurvirostra americana | Stilts and Avocets | 72 | Apr (past peak) |
| 38 | Northern Flicker | Colaptes auratus | Woodpeckers | 71 | Oct (rising) |
| 39 | Black-billed Magpie | Pica hudsonia | Crows, Jays, and Magpies | 71 | May (past peak) |
| 40 | Chipping Sparrow | Spizella passerina | New World Sparrows | 70 | Aug (past peak) |
| 41 | Brewer's Blackbird | Euphagus cyanocephalus | New World Blackbirds and Orioles | 70 | Jun (past peak) |
| 42 | Dark-eyed Junco | Junco hyemalis | New World Sparrows | 69 | Dec (rising) |
| 43 | American Kestrel | Falco sparverius | Falcons and Caracaras | 68 | Jan (past peak) |
| 44 | Killdeer | Charadrius vociferus | Plovers and Lapwings | 68 | May (past peak) |
| 45 | American Robin | Turdus migratorius | Thrushes | 64 | Jun (past peak) |
| 46 | Costa's Hummingbird | Calypte costae | Hummingbirds | 63 | Apr (past peak) |
| 47 | Common Gallinule | Gallinula galeata | Rails, Gallinules, and Coots | 63 | Jan (past peak) |
| 48 | Yellow-rumped Warbler | Setophaga coronata | New World Warblers | 62 | Oct (rising) |
| 49 | Belted Kingfisher | Megaceryle alcyon | Kingfishers | 58 | Sep (peak) |
| 50 | Double-crested Cormorant | Nannopterum auritum | Cormorants and Shags | 58 | Jan (past peak) |