Passerines, also known as perching birds, are species which have anisodactyl arrangement of their toes (having four toes, three directed forward and one backward, all joining the foot at the same level). The order Passeriformes includes more than half the bird species in the world.
Please note that although Corvids are actually passerines, I am including them in a separate group of their own. Also, Kingfishers aren't actually passerines but are included here for lack of a better home.

Rock Pigeon, Spencer Spit

Eurasian Collared-Dove, Agate Beach

Mourning Dove, Richardson Road

Anna's Hummingbird, Richardson Marsh

Rufous Hummingbird, Kjargaard Road

Rufous Hummingbird, Kjargaard Road

Northern Shrike, Weeks Wetland Preserve

Horned Lark, Iceberg Point

Tree Swallow, Richardson

Violet-green Swallow, Agate Beach

Violet-Green Swallow, Odlin Park

Rough-winged Swallow, Richardson Marsh

Purple Martins, Fisherman Bay

Barn Swallow, Weeks Wetland Preserve

Chestnut-backed Chickadee, Richardson

Bushtit, Richardson Marsh

Bushtit, Kjargaard Road

Ruby-crowned Kinglet, Shark Reef

Ruby-crowned Kinglet, Iceberg Point

Golden-crowned Kinglet, Iceberg Point

Red-breasted Nuthatch, Channel Preserve

Brown Creeper, Iceberg Point

House Wren, Odlin South

Pacific Wren, Spencer Spit

Bewick's Wren, Richardson Marsh

Bewick's Wren, Richardson Marsh

European Starlings, Kjargaard Road

Cedar Waxwing, Richardson Marsh

House Sparrow, Post Office

Varied Thrushes, Kjargaard Road

Hermit Thrush, Kjargaard Road

American Robin, Kjargaard Road

American Pipit, Fisherman Spit

Mountain Bluebird, Central Lopez

Townsend's Solitaire, Kjargaard Road

Swainson's Thrush, Hummel Lake Preserve

House Finches, Richardson Road

House Finch, Richardson Marsh

House Finch, Richardson Marsh

Female Purple Finch, Richardson Marsh

Red Crossbill, Kjargaard Road

Pine Siskin, Chadwick Hill

Pine Siskins, Kjargaard Road

American Goldfinch, Shark Reef

Chipping Sparrow, Richardson Road

Fox Sparrow, Kjargaard Road

Dark-eyed Junco, Kjargaard Road

White-crowned Sparrow, Weeks Wetland Preserve

White-crowned Sparrow, Richardson Road

Golden-crowned Sparrow, Kjargaard Road

Savannah Sparrow, Richardson

Belted Kingfisher, Weeks Wetland Preserve

Olive-sided Flycatcher, Richardson Marsh

Western Wood-Pewee, Odlin Park

Willow Flycatcher, Hummel Lake

Western Flycatcher, Hummel Lake

Song Sparrow, Kjargaard Road

Song Sparrow, Richardson Marsh

Spotted Towhee, Kjargaard Road

Western Meadowlark, Richardson

Red-winged Blackbird, Kjargaard Road

Female Red-winged Blackbird, Richardson Marsh

Fledging Red-winged Blackbirds, Richardson Marsh

Brown-headed Cowbird, Weeks Wetland Preserve

Brewer's Blackbirds, Richardson Road

Orange-crowned Warbler, Richardson Marsh

Orange-crowned Warbler, Richardson Marsh

Common Yellowthroat, Richardson Marsh

Yellow Warbler, Agate Beach

Yellow-rumped Warbler, Richardson

Yellow-rumped Warbler, Richardson

Yellow-rumped Warbler, Shark Reef

Wilson's Warbler, Hummel Lake Preserve

Western Tanager, Hummel Lake Preserve

Black-headed Grosbeak (m), Hummel Lake Preserve
