60 birds were recorded seen in Hawaii in October in our iNaturalist sample; 3 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top birds in October

Pacific Golden-Plover

Zebra Dove

Red-crested Cardinal
Common Myna

Western Cattle-Egret
Hawaiian Goose

Saffron Finch

Black-crowned Night Heron

White-rumped Shama

Common Waxbill

Java Sparrow

House Sparrow
All birds seen in Hawaii in October
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Pacific Golden-Plover | Pluvialis fulva | Plovers and Lapwings | 693 | Mar (past peak) |
| 2 | Zebra Dove | Geopelia striata | Pigeons and Doves | 614 | Dec (rising) |
| 3 | Red-crested Cardinal | Paroaria coronata | Tanagers and Allies | 532 | Jun (past peak) |
| 4 | Common Myna | Acridotheres tristis | Starlings | 512 | Mar (past peak) |
| 5 | Western Cattle-Egret | Ardea ibis | Herons, Egrets, and Bitterns | 483 | Dec (rising) |
| 6 | Hawaiian Goose | Branta sandvicensis | Ducks, Geese, and Swans | 412 | Dec (rising) |
| 7 | Saffron Finch | Sicalis flaveola | Tanagers and Allies | 356 | Jan (past peak) |
| 8 | Black-crowned Night Heron | Nycticorax nycticorax | Herons, Egrets, and Bitterns | 286 | Mar (past peak) |
| 9 | White-rumped Shama | Copsychus malabaricus | Old World Flycatchers, Robins, and Chats | 248 | May (past peak) |
| 10 | Common Waxbill | Estrilda astrild | Waxbills and Allies | 241 | Jan (past peak) |
| 11 | Java Sparrow | Padda oryzivora | Waxbills and Allies | 240 | Dec (rising) |
| 12 | House Sparrow | Passer domesticus | Old World Sparrows | 237 | Aug (past peak) |
| 13 | Spotted Dove | Spilopelia chinensis | Pigeons and Doves | 225 | Mar (past peak) |
| 14 | Warbling White-eye | Zosterops japonicus | White-eyes, Yuhinas, and Allies | 213 | Mar (past peak) |
| 15 | Yellow-billed Cardinal | Paroaria capitata | Tanagers and Allies | 187 | Jul (past peak) |
| 16 | ʻApapane | Himatione sanguinea | Finches, Euphonias, and Allies | 179 | Mar (past peak) |
| 17 | Wandering Tattler | Tringa incana | Sandpipers and Allies | 176 | Jan (past peak) |
| 18 | Ruddy Turnstone | Arenaria interpres | Sandpipers and Allies | 164 | Jan (past peak) |
| 19 | Red-vented Bulbul | Pycnonotus cafer | Bulbuls | 152 | Apr (past peak) |
| 20 | Red-footed Booby | Sula sula | Boobies and Gannets | 120 | Dec (rising) |
| 21 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 117 | Mar (past peak) |
| 22 | Chukar | Alectoris chukar | Pheasants, Grouse, and Allies | 90 | Sep (past peak) |
| 23 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 87 | Apr (past peak) |
| 24 | Scaly-breasted Munia | Lonchura punctulata | Waxbills and Allies | 64 | Feb (past peak) |
| 25 | Northern Pintail | Anas acuta | Ducks, Geese, and Swans | 44 | Jan (past peak) |
| 26 | Red-whiskered Bulbul | Pycnonotus jocosus | Bulbuls | 40 | Mar (past peak) |
| 27 | Wild Turkey | Meleagris gallopavo | Pheasants, Grouse, and Allies | 33 | Mar (past peak) |
| 28 | Sanderling | Calidris alba | Sandpipers and Allies | 29 | Dec (rising) |
| 29 | Rosy-faced Lovebird | Agapornis roseicollis | Old World Parrots | 29 | Jan (past peak) |
| 30 | Northern Mockingbird | Mimus polyglottos | Mockingbirds and Thrashers | 27 | Dec (rising) |
| 31 | Indian Peafowl | Pavo cristatus | Pheasants, Grouse, and Allies | 26 | Mar (past peak) |
| 32 | Pectoral Sandpiper | Calidris melanotos | Sandpipers and Allies | 22 | Oct (peak) |
| 33 | White-faced Ibis | Plegadis chihi | Ibises and Spoonbills | 18 | Jan (past peak) |
| 34 | Ring-necked Pheasant | Phasianus colchicus | Pheasants, Grouse, and Allies | 14 | Mar (past peak) |
| 35 | Northern Shoveler | Spatula clypeata | Ducks, Geese, and Swans | 14 | Nov (rising) |
| 36 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 13 | Mar (past peak) |
| 37 | Red-masked Parakeet | Psittacara erythrogenys | New World and African Parrots | 13 | Jan (past peak) |
| 38 | Lesser Scaup | Aythya affinis | Ducks, Geese, and Swans | 11 | Nov (rising) |
| 39 | Osprey | Pandion haliaetus | Ospreys | 10 | Oct (peak) |
| 40 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 9 | Mar (past peak) |
| 41 | American Wigeon | Mareca americana | Ducks, Geese, and Swans | 9 | Nov (rising) |
| 42 | Snow Goose | Anser caerulescens | Ducks, Geese, and Swans | 9 | Dec (rising) |
| 43 | American Barn Owl | Tyto furcata | Barn Owls | 9 | May (past peak) |
| 44 | Pied-billed Grebe | Podilymbus podiceps | Grebes | 5 | Jul (past peak) |
| 45 | Semipalmated Plover | Charadrius semipalmatus | Plovers and Lapwings | 5 | Jan (past peak) |
| 46 | Green-winged Teal | Anas crecca | Ducks, Geese, and Swans | 5 | Nov (rising) |
| 47 | Red-crowned Amazon | Amazona viridigenalis | New World and African Parrots | 5 | Jan (past peak) |
| 48 | Cackling Goose | Branta hutchinsii | Ducks, Geese, and Swans | 5 | Jan (past peak) |
| 49 | Least Tern | Sternula antillarum | Gulls, Terns, and Skimmers | 5 | Sep (past peak) |
| 50 | Western Sandpiper | Calidris mauri | Sandpipers and Allies | 4 | Oct (peak) |