60 birds were recorded seen in Arizona in December 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 December

Red-tailed Hawk

Gila Woodpecker

White-crowned Sparrow
House Finch

Vermilion Flycatcher
Gambel's Quail
Anna's Hummingbird

Mourning Dove

Curve-billed Thrasher

Cactus Wren

Great-tailed Grackle
Phainopepla
All birds seen in Arizona in December
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Red-tailed Hawk | Buteo jamaicensis | Hawks, Eagles, and Kites | 841 | Jan (past peak) |
| 2 | Gila Woodpecker | Melanerpes uropygialis | Woodpeckers | 815 | Apr (past peak) |
| 3 | White-crowned Sparrow | Zonotrichia leucophrys | New World Sparrows | 795 | Jan (past peak) |
| 4 | House Finch | Haemorhous mexicanus | Finches, Euphonias, and Allies | 776 | Apr (past peak) |
| 5 | Vermilion Flycatcher | Pyrocephalus rubinus | Tyrant Flycatchers | 770 | Apr (past peak) |
| 6 | Gambel's Quail | Callipepla gambelii | New World Quails | 712 | Apr (past peak) |
| 7 | Anna's Hummingbird | Calypte anna | Hummingbirds | 710 | Mar (past peak) |
| 8 | Mourning Dove | Zenaida macroura | Pigeons and Doves | 692 | Apr (past peak) |
| 9 | Curve-billed Thrasher | Toxostoma curvirostre | Mockingbirds and Thrashers | 687 | Apr (past peak) |
| 10 | Cactus Wren | Campylorhynchus brunneicapillus | Wrens | 682 | Apr (past peak) |
| 11 | Great-tailed Grackle | Quiscalus mexicanus | New World Blackbirds and Orioles | 674 | Apr (past peak) |
| 12 | Phainopepla | Phainopepla nitens | Silky-flycatchers | 620 | Mar (past peak) |
| 13 | Verdin | Auriparus flaviceps | Penduline-Tits | 617 | Apr (past peak) |
| 14 | American Coot | Fulica americana | Rails, Gallinules, and Coots | 605 | Mar (past peak) |
| 15 | Northern Mockingbird | Mimus polyglottos | Mockingbirds and Thrashers | 589 | Apr (past peak) |
| 16 | American Wigeon | Mareca americana | Ducks, Geese, and Swans | 589 | Dec (peak) |
| 17 | Cooper's Hawk | Astur cooperii | Hawks, Eagles, and Kites | 557 | Mar (past peak) |
| 18 | Ring-necked Duck | Aythya collaris | Ducks, Geese, and Swans | 523 | Jan (past peak) |
| 19 | Greater Roadrunner | Geococcyx californianus | Cuckoos | 514 | Aug (past peak) |
| 20 | Mallard | Anas platyrhynchos | Ducks, Geese, and Swans | 501 | Apr (past peak) |
| 21 | Black-throated Sparrow | Amphispiza bilineata | New World Sparrows | 468 | Mar (past peak) |
| 22 | Lesser Goldfinch | Spinus psaltria | Finches, Euphonias, and Allies | 455 | Apr (past peak) |
| 23 | Common Raven | Corvus corax | Crows, Jays, and Magpies | 454 | Mar (past peak) |
| 24 | Abert's Towhee | Melozone aberti | New World Sparrows | 452 | Apr (past peak) |
| 25 | Ruby-crowned Kinglet | Corthylio calendula | Kinglets | 434 | Jan (past peak) |
| 26 | Say's Phoebe | Sayornis saya | Tyrant Flycatchers | 419 | Jan (past peak) |
| 27 | American Kestrel | Falco sparverius | Falcons and Caracaras | 402 | Jan (past peak) |
| 28 | Yellow-rumped Warbler | Setophaga coronata | New World Warblers | 383 | Mar (past peak) |
| 29 | Black Phoebe | Sayornis nigricans | Tyrant Flycatchers | 382 | Jan (past peak) |
| 30 | Northern Cardinal | Cardinalis cardinalis | Cardinals and Allies | 374 | Apr (past peak) |
| 31 | Great Blue Heron | Ardea herodias | Herons, Egrets, and Bitterns | 354 | Apr (past peak) |
| 32 | Ladder-backed Woodpecker | Dryobates scalaris | Woodpeckers | 343 | Apr (past peak) |
| 33 | Great Egret | Ardea alba | Herons, Egrets, and Bitterns | 341 | Dec (peak) |
| 34 | Costa's Hummingbird | Calypte costae | Hummingbirds | 339 | Mar (past peak) |
| 35 | Northern Shoveler | Spatula clypeata | Ducks, Geese, and Swans | 335 | Jan (past peak) |
| 36 | Harris's Hawk | Parabuteo unicinctus | Hawks, Eagles, and Kites | 329 | Jan (past peak) |
| 37 | Pied-billed Grebe | Podilymbus podiceps | Grebes | 320 | Jan (past peak) |
| 38 | Western Bluebird | Sialia mexicana | Thrushes | 318 | Jan (past peak) |
| 39 | Rock Wren | Salpinctes obsoletus | Wrens | 308 | Jan (past peak) |
| 40 | House Sparrow | Passer domesticus | Old World Sparrows | 306 | Apr (past peak) |
| 41 | Dark-eyed Junco | Junco hyemalis | New World Sparrows | 299 | Mar (past peak) |
| 42 | Loggerhead Shrike | Lanius ludovicianus | Shrikes | 286 | Jan (past peak) |
| 43 | Eurasian Collared-Dove | Streptopelia decaocto | Pigeons and Doves | 268 | Apr (past peak) |
| 44 | Canyon Towhee | Melozone fusca | New World Sparrows | 254 | May (past peak) |
| 45 | Acorn Woodpecker | Melanerpes formicivorus | Woodpeckers | 249 | May (past peak) |
| 46 | Snowy Egret | Egretta thula | Herons, Egrets, and Bitterns | 243 | Jan (past peak) |
| 47 | Northern Pintail | Anas acuta | Ducks, Geese, and Swans | 233 | Jan (past peak) |
| 48 | Black-crowned Night Heron | Nycticorax nycticorax | Herons, Egrets, and Bitterns | 230 | Jan (past peak) |
| 49 | Northern Flicker | Colaptes auratus | Woodpeckers | 229 | Oct (past peak) |
| 50 | Neotropic Cormorant | Nannopterum brasilianum | Cormorants and Shags | 224 | Mar (past peak) |