NA4 | kchoophoto

Sandpiper, Sharp-tailed

Sandpiper, Solitary

Sandpiper, Spotted

Sandpiper, Stilt

Sandpiper, Western

North America

Sapsucker, Williamson's

Sapsucker, Red-naped

Sapsucker, Red-breasted

Shearwater, Great

Scrub-Jay, Western

Scoter, White-winged

Shoveler, Northern

Shrike, Loggerhead

Shrike, Northern

Snipe, Wilson's

Solitaire, Townsend's

Sparrow, American Tree

Sparrow, Black-chinned

Sparrow, Black-throated

Sparrow, Brewer's

Sparrow, Chipping

Sparrow, Fox, Thick-billed

Sparrow, Golden-crowned

Sparrow, Savannah

Sparrow, Lincoln's

Starling, European

Spoonbill, Roseate

Sparrow, White-crowned

Sparrow, Vesper

Stilt, Black-necked

Swallow, N. Rough-winged

Swallow, Violet-green

Swan, Trumpeter

Tanager, Western

Tanager, Summer

Tanager, Hepatic

Swift, White-throated