60 birds were recorded seen in District of Columbia in August in our iNaturalist sample; 1 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in August

European Starling

Mallard

House Sparrow

Great Egret

American Goldfinch

Great Blue Heron

Northern Cardinal

American Robin

Mourning Dove

Northern Mockingbird

Osprey

Blue Jay
All birds seen in District of Columbia in August
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | European Starling | Sturnus vulgaris | Starlings | 258 | Apr (past peak) |
| 2 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 243 | Apr (past peak) |
| 3 | House Sparrow | Passer domesticus | Old World Sparrows | 224 | Apr (past peak) |
| 4 | Great Egret | Ardea alba | Herons, Egrets, and Bitterns | 125 | Sep (rising) |
| 5 | American Goldfinch | Spinus tristis | Finches, Euphonias, and Allies | 125 | Aug (peak) |
| 6 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 111 | May (past peak) |
| 7 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 107 | Apr (past peak) |
| 8 | American Robin | Turdus migratorius | Thrushes | 98 | Apr (past peak) |
| 9 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 91 | Apr (past peak) |
| 10 | Northern Mockingbird | Mimus polyglottos | Mockingbirds and Thrashers | 89 | Apr (past peak) |
| 11 | Osprey | Pandion haliaetus | Ospreys | 61 | Apr (past peak) |
| 12 | Blue Jay | Cyanocitta cristata | Crows, Jays, and Magpies | 60 | Jun (past peak) |
| 13 | Gray Catbird | Dumetella carolinensis | Mockingbirds and Thrashers | 60 | Jun (past peak) |
| 14 | Eastern Kingbird | Tyrannus tyrannus | Tyrant Flycatchers | 56 | May (past peak) |
| 15 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 55 | Jan (past peak) |
| 16 | Green Heron | Butorides virescens | Herons, Egrets, and Bitterns | 49 | Jul (past peak) |
| 17 | Double-crested Cormorant | Nannopterum auritum | Cormorants and Shags | 49 | Apr (past peak) |
| 18 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 48 | May (past peak) |
| 19 | Ruby-throated Hummingbird | Archilochus colubris | Hummingbirds | 41 | Sep (rising) |
| 20 | Common Grackle | Quiscalus quiscula | New World Blackbirds and Orioles | 41 | Apr (past peak) |
| 21 | Eastern Wood-Pewee | Contopus virens | Tyrant Flycatchers | 41 | Sep (rising) |
| 22 | Carolina Wren | Thryothorus ludovicianus | Wrens | 38 | Apr (past peak) |
| 23 | Northern Flicker | Colaptes auratus | Woodpeckers | 36 | Apr (past peak) |
| 24 | Downy Woodpecker | Dryobates pubescens | Woodpeckers | 36 | Mar (past peak) |
| 25 | Wood Duck | Aix sponsa | Ducks, Geese, and Swans | 34 | Apr (past peak) |
| 26 | Red-bellied Woodpecker | Melanerpes carolinus | Woodpeckers | 34 | Mar (past peak) |
| 27 | Cooper's Hawk | Astur cooperii | Hawks, Eagles, and Kites | 34 | Dec (rising) |
| 28 | Ring-billed Gull | Larus delawarensis | Gulls, Terns, and Skimmers | 32 | Feb (past peak) |
| 29 | Great Crested Flycatcher | Myiarchus crinitus | Tyrant Flycatchers | 29 | May (past peak) |
| 30 | Brown-headed Cowbird | Molothrus ater | New World Blackbirds and Orioles | 28 | May (past peak) |
| 31 | Blue-gray Gnatcatcher | Polioptila caerulea | Gnatcatchers and Gnatwrens | 24 | Apr (past peak) |
| 32 | Laughing Gull | Leucophaeus atricilla | Gulls, Terns, and Skimmers | 20 | Sep (rising) |
| 33 | Song Sparrow | Melospiza melodia | New World Sparrows | 19 | Mar (past peak) |
| 34 | Bald Eagle | Haliaeetus leucocephalus | Hawks, Eagles, and Kites | 17 | Mar (past peak) |
| 35 | White-breasted Nuthatch | Sitta carolinensis | Nuthatches | 17 | Feb (past peak) |
| 36 | Eastern Phoebe | Sayornis phoebe | Tyrant Flycatchers | 17 | Apr (past peak) |
| 37 | Red-winged Blackbird | Agelaius phoeniceus | New World Blackbirds and Orioles | 15 | Apr (past peak) |
| 38 | Barred Owl | Strix varia | Typical Owls | 15 | Apr (past peak) |
| 39 | Roseate Spoonbill | Platalea ajaja | Ibises and Spoonbills | 15 | Jul (past peak) |
| 40 | Red-eyed Vireo | Vireo olivaceus | Vireos, Shrike-Babblers, and Erpornis | 15 | May (past peak) |
| 41 | Black Vulture | Coragyps atratus | New World Vultures | 14 | Apr (past peak) |
| 42 | Black-and-white Warbler | Mniotilta varia | New World Warblers | 14 | Sep (rising) |
| 43 | Red-shouldered Hawk | Buteo lineatus | Hawks, Eagles, and Kites | 13 | Jan (past peak) |
| 44 | Tufted Titmouse | Baeolophus bicolor | Tits, Chickadees, and Titmice | 13 | Mar (past peak) |
| 45 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 12 | Apr (past peak) |
| 46 | Black-crowned Night Heron | Nycticorax nycticorax | Herons, Egrets, and Bitterns | 12 | May (past peak) |
| 47 | Yellow-crowned Night Heron | Nyctanassa violacea | Herons, Egrets, and Bitterns | 12 | Jun (past peak) |
| 48 | Blue Grosbeak | Passerina caerulea | Cardinals and Allies | 12 | May (past peak) |
| 49 | Pileated Woodpecker | Dryocopus pileatus | Woodpeckers | 11 | Apr (past peak) |
| 50 | Baltimore Oriole | Icterus galbula | New World Blackbirds and Orioles | 10 | May (past peak) |