Arden Park, California

Yellow-rumped Warbler (Setophaga coronata)

Orange-crowned Warbler (Oreothlypis celata)

Red-tailed Hawk (Buteo jamaicensis)

Colusa NWR, California

Falcated Duck (Anas falcata)

Green-winged Teal (American) (Anas crecca carolinensis)

Northern Pintail (Anas acuta)

Black-necked Stilt (Himantopus mexicanus)

Yolo Bypass Wildlife Area, California

Marsh Wren (Cistothorus palustris)

Red-shouldered Hawk (Buteo lineatus)

Serene Lakes, California

Mountain Chickadee (Poecile gambeli)

Steller's Jay (Cyanocitta stelleri)

Nimbus Fish Hatchery, California

Common Goldeneye (left) and Barrow's Goldeneye (right) (Bucephala clangula and Bucephala islandica)

Not the best photo but it clearly illustrates the field marks/differences of these often confused species. Note the shape of the face spot (elongated in the Barrow's), the amount of black on the back (Barrow's has more black), and the sheen color of the head (Barrow's is commonly purple instead of green for the Common)

Scott Road, Sacramento County, California

Lark Sparrow (Chondestes grammacus)

Yolo Bypass Wildlife Area, California

Savannah Sparrow (Passerculus sandwichensis)

Gadwall (Anas strepera)

American Coot (Fulica americana)

Wilson's Snipe (Gallinago delicata)

Cosumnes River Preserve, California

Sandhill Crane (Grus canadensis)

Lincoln's Sparrow (Melospiza lincolnii)

White-throated Sparrow (Zonotrichia albicollis)

Fox Sparrow (Sooty) (Passerella iliaca)

Northern Pintail (Anas acuta)

Western Grebe (Aechmophorus occidentalis)

Loggerhead Shrike (Lanius ludovicianus)

Black Phoebe (Sayornis nigricans)

Serene Lakes, California

Sooty Grouse (Dendragapus fuliginosus)

American White Pelican ( Pelecanus erythrorhynchos)

Jackson Bottoms Preserve, Oregon

Bald Eagle (Haliaeetus leucocephalus)

Yolo Bypass Wildlife Area, California

Northern Harrier (American) (Circus cyaneus hudsonius)

Putah Creek (East of Pendrick Rd) Dixon, California

Downy Woodpecker (Picoides pubescens)

Pedrick Rd, Davis, California

Downy Woodpecker (Picoides pubescens)

Yellow-rumped Warbler (Setophaga coronata)

Monterey Bay, California - Pelagic

Brown Pelican (California) ( Pelecanus occidentalis californicus)

Sabine Gull (Xema sabini)

Black-vented Shearwater (Puffinus opisthomelas)

Black-footed Albatross (Phoebastria nigripes)

South Polar Skua (Stercorarius maccormicki)

Buller's Shearwater (Puffinus bulleri)

Brandt's Cormorant (Phalacrocorax penicillatus)

Pomarine Jaeger (Stercorarius pomarinus)

 

Rhinoceros Auklet (Cerorhinca monocerata)

Heermann's Gull (Larus heermanni)

Ancil Hoffman Park, Sacramento, California

Great Blue Heron (Ardea herodias)

Acorn Woodpecker (Melanerpes formicivorus)

California Towhee (Melozone crissalis)

Oak Titmouse (Baeolophus inornatus)

Yellow-billed Magpie (Pica nuttalli)

White-breasted Nuthatch (Sitta carolinensis)