60 birds were recorded seen in Oregon in August 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 August

Great Blue Heron

Mallard

Common Murre

Osprey

Turkey Vulture

Steller's Jay

American Crow

Dark-eyed Junco

Red-tailed Hawk
California Scrub-Jay

Western Gull

Barn Swallow
All birds seen in Oregon in August
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 885 | May (past peak) |
| 2 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 780 | Apr (past peak) |
| 3 | Common Murre | Uria aalge | Auks, Murres, and Puffins | 675 | Aug (peak) |
| 4 | Osprey | Pandion haliaetus | Ospreys | 651 | Jul (past peak) |
| 5 | Turkey Vulture | Cathartes aura | New World Vultures | 633 | May (past peak) |
| 6 | Steller's Jay | Cyanocitta stelleri | Crows, Jays, and Magpies | 630 | May (past peak) |
| 7 | American Crow | Corvus brachyrhynchos | Crows, Jays, and Magpies | 564 | Mar (past peak) |
| 8 | Dark-eyed Junco | Junco hyemalis | New World Sparrows | 529 | Jan (past peak) |
| 9 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 516 | Jan (past peak) |
| 10 | California Scrub-Jay | Aphelocoma californica | Crows, Jays, and Magpies | 472 | May (past peak) |
| 11 | Western Gull | Larus occidentalis | Gulls, Terns, and Skimmers | 465 | Jul (past peak) |
| 12 | Barn Swallow | Hirundo rustica | Swallows and Martins | 457 | May (past peak) |
| 13 | Least Sandpiper | Calidris minutilla | Sandpipers and Allies | 455 | Aug (peak) |
| 14 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 434 | May (past peak) |
| 15 | Western Sandpiper | Calidris mauri | Sandpipers and Allies | 414 | Aug (peak) |
| 16 | Northern Flicker | Colaptes auratus | Woodpeckers | 412 | Mar (past peak) |
| 17 | Anna's Hummingbird | Calypte anna | Hummingbirds | 407 | Mar (past peak) |
| 18 | American Robin | Turdus migratorius | Thrushes | 405 | May (past peak) |
| 19 | Canada Goose | Branta canadensis | Ducks, Geese, and Swans | 400 | Apr (past peak) |
| 20 | Cedar Waxwing | Bombycilla cedrorum | Waxwings | 398 | Jun (past peak) |
| 21 | Great Egret | Ardea alba | Herons, Egrets, and Bitterns | 372 | Sep (rising) |
| 22 | Song Sparrow | Melospiza melodia | New World Sparrows | 365 | Mar (past peak) |
| 23 | Red-breasted Nuthatch | Sitta canadensis | Nuthatches | 355 | Sep (rising) |
| 24 | Black-capped Chickadee | Poecile atricapillus | Tits, Chickadees, and Titmice | 341 | Mar (past peak) |
| 25 | Brown Pelican | Pelecanus occidentalis | Pelicans | 338 | Aug (peak) |
| 26 | American Goldfinch | Spinus tristis | Finches, Euphonias, and Allies | 327 | May (past peak) |
| 27 | Cooper's Hawk | Astur cooperii | Hawks, Eagles, and Kites | 323 | Aug (peak) |
| 28 | Green Heron | Butorides virescens | Herons, Egrets, and Bitterns | 319 | Aug (peak) |
| 29 | Belted Kingfisher | Megaceryle alcyon | Kingfishers | 316 | Aug (peak) |
| 30 | Lesser Goldfinch | Spinus psaltria | Finches, Euphonias, and Allies | 316 | May (past peak) |
| 31 | White-crowned Sparrow | Zonotrichia leucophrys | New World Sparrows | 309 | Apr (past peak) |
| 32 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 308 | Apr (past peak) |
| 33 | American White Pelican | Pelecanus erythrorhynchos | Pelicans | 303 | Sep (rising) |
| 34 | Wood Duck | Aix sponsa | Ducks, Geese, and Swans | 303 | May (past peak) |
| 35 | Greater Yellowlegs | Tringa melanoleuca | Sandpipers and Allies | 292 | Apr (past peak) |
| 36 | Downy Woodpecker | Dryobates pubescens | Woodpeckers | 291 | Jan (past peak) |
| 37 | Clark's Nutcracker | Nucifraga columbiana | Crows, Jays, and Magpies | 288 | Jul (past peak) |
| 38 | Double-crested Cormorant | Nannopterum auritum | Cormorants and Shags | 283 | Jan (past peak) |
| 39 | California Gull | Larus californicus | Gulls, Terns, and Skimmers | 281 | Oct (rising) |
| 40 | Brewer's Blackbird | Euphagus cyanocephalus | New World Blackbirds and Orioles | 275 | May (past peak) |
| 41 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 269 | May (past peak) |
| 42 | California Quail | Callipepla californica | New World Quails | 266 | May (past peak) |
| 43 | Bald Eagle | Haliaeetus leucocephalus | Hawks, Eagles, and Kites | 263 | May (past peak) |
| 44 | Bushtit | Psaltriparus minimus | Long-tailed Tits and Bushtits | 253 | Mar (past peak) |
| 45 | Pied-billed Grebe | Podilymbus podiceps | Grebes | 250 | Sep (rising) |
| 46 | Barred Owl | Strix varia | Typical Owls | 242 | Jul (past peak) |
| 47 | Hairy Woodpecker | Leuconotopicus villosus | Woodpeckers | 242 | Jun (past peak) |
| 48 | Western Tanager | Piranga ludoviciana | Cardinals and Allies | 241 | May (past peak) |
| 49 | Black-headed Grosbeak | Pheucticus melanocephalus | Cardinals and Allies | 240 | May (past peak) |
| 50 | Swainson's Hawk | Buteo swainsoni | Hawks, Eagles, and Kites | 238 | May (past peak) |