Auriculars or ear coverts vary greatly among bird species.
Acorn Woodpecker
American Robin
Barn Swallow auriculars not differentiated.
Bronzed Cowbird
Bridled Titmouse
Cactus Wren
Cattle Egret
Canyon Towhee
Curve-billed Thrasher
Chicken, auriculars
Eastern Meadowlark
EMU
Fish Crow
Gambel’s Quail male
Gambel’s Quail female
Great Blue Heron
Gilded Flicker female
Gilded Flicker
Gila Woodpecker female
Great Egret
Greater Roadrunner
Great-tailed Grackle
Great-tailed Grackle female
Helmeted Guineafowl
Hepatic Tanager
House Finch
Hepatic Tanager
Inca Dove
Killdeer
Laughing Gull
Little Blue Heron
Lesser Scaup
Limpkin
Lincoln’s Sparrow
Mexican Jay
Mourning Dove
Mute Swan
Northern Cardinal
Northern Mockingbird
Olive Sparrow
Pied-billed Grebe
Phainopepla
Pileated Woodpecker
Plain Chachalaca
Rosy-faced Lovebird
Roseate Spoonbill
Royal Tern
Red-winged Blackbird female
Sandhill Crane
Sage Thrasher
Scaled Quail
Snowy Egret
Western Gull
Western Meadowlark
White-faced Ibis
White Ibis
Wild Turkey
Wood Stork
Wood Stork juvenile
White-winged Dove
Yellow-crowned Night-Heron
Auriclulars