Two similar geese

 snow goose

 Ross's goose

The two types together

Saguaro Lake by water

 Red-necked grebe

 Western Grebe

Bald Eagle

wintering least sandpipers

Mittry Lake

 Common goldeneye

 Antelope ground squirrel

 sunrise over the reeds

Muskrat lodge

Saguaro lake and downstream

 Ring-billed gulls

 Ruddy duck

 Bufflehead

 Great blue heron

 Feral Horses

 Black Phoebe

 Vermillion flycatcher

 Ruby-crowned kinglet

 Red-tailed hawk

 Cactus wren

Anna's hummingbird

Phainopepla

Urban owl

Roosting great horned owl

A winter ground squirrel

Hidden Lakes

sagebrush sparrow