Elkhorn Slough Bird Checklist

Species Fall Winter Spring Summer
Common Loon Common Common Common Occasional
Pied-billed Grebe Uncommon Common Uncommon Uncommon
Horned Grebe Uncommon Uncommon Occasional Extremely Rare
Red-necked Grebe Occasional Occasional Occasional
Eared Grebe Uncommon Uncommon Uncommon Extremely Rare
Western Grebe Common Common Common Uncommon
Clark's Grebe Uncommon Uncommon Uncommon Rare
Northern Fulmar Occasional Occasional
Pink-footed Shearwater Occasional Rare Occasional
Flesh-footed Shearwater Extremely Rare
Sooty Shearwater Common Occasional Occasional Common
Short-tailed Shearwater Occasional Occasional
Fork-tailed Storm-petrel Extremely Rare
American White Pelican Rare Rare Rare Rare
Brown Pelican Common Uncommon Uncommon Common
Double-crested Cormorant Common Common Common Occasional
Brandt's Cormorant Common Common Common Uncommon
Pelagic Cormorant Uncommon Uncommon Uncommon Uncommon
Magnificent Frigatebird Extremely Rare
American Bittern Rare Rare Rare Occasional
Great Blue Heron Common Common Common Common
Great Egret Common Common Common Common
Snowy Egret Common Common Common Uncommon
Reddish Egret Extremely Rare Extremely Rare
Cattle Egret Rare Rare Rare
Green Heron Uncommon Occasional Occasional Rare
Black-crowned Night Heron Uncommon Uncommon Uncommon Uncommon
White-faced Ibis Rare Rare Rare Rare
Roseate Spoonbill Extremely Rare
Turkey Vulture Common Occasional Common Common
White-fronted Goose Rare Rare Extremely Rare
Snow Goose Rare Rare
Ross's Goose Rare Rare Extremely Rare
Emperor Goose Extremely Rare
Canada Goose Common Common Common Common
Cackling Goose Extremely Rare Rare Extremely Rare Extremely Rare
Brant Uncommon Rare Uncommon Rare
Tundra Swan Rare
Wood Duck Rare Rare Rare
Green-winged Teal Common Common Uncommon Extremely Rare
Mallard Common Common Common Common
Northern Pintail Common Common Common
Blue-winged Teal Uncommon Rare Uncommon Extremely Rare
Cinnamon Teal Uncommon Common Common Uncommon
Northern Shoveler Common Common Common Uncommon
Gadwall Common Common Common Common
Eurasian Wigeon Extremely Rare Rare Extremely Rare
American Wigeon Uncommon Common Uncommon
Canvasback Uncommon Common Uncommon
Redhead Rare Rare Rare
Ring-necked Duck Rare Uncommon Rare
Greater Scaup Uncommon Common Uncommon Occasional
Lesser Scaup Uncommon Common Uncommon Extremely Rare
Tufted Duck Extremely Rare Extremely Rare
King Eider Extremely Rare Extremely Rare Extremely Rare
Harlequin Duck Extremely Rare Extremely Rare Extremely Rare
Long-tailed Duck
Black Scoter Occasional
Surf Scoter Common Common Common Occasional
White-winged Scoter Uncommon Common Uncommon Rare
Common Goldeneye Common Common Uncommon Extremely Rare
Barrow's Goldeneye Rare
Bufflehead Common Common Uncommon Extremely Rare
Hooded Merganser Rare Rare
Common Merganser Extremely Rare Rare Extremely Rare Extremely Rare
Red-breasted Merganser Uncommon Uncommon Uncommon Occasional
Ruddy Duck Common Common Common Common
Osprey Occasional Occasional Occasional Rare
White-tailed Kite Uncommon Uncommon Uncommon Uncommon
Golden Eagle Uncommon Uncommon Uncommon Uncommon
Bald Eagle Extremely Rare
Northern Harrier Uncommon Uncommon Uncommon Occasional
Sharp-shinned Hawk Uncommon Uncommon Uncommon
Cooper's Hawk Uncommon Uncommon Uncommon Occasional
Red-shouldered Hawk Uncommon Uncommon Uncommon Uncommon
Red-tailed Hawk Common Common Common Common
Broad-winged Hawk Rare
Swainson's Hawk Rare Extremely Rare
Ferruginous Hawk Rare Rare
Rough-legged Hawk Rare
American Kestrel Common Common Common Uncommon
Peregrine Falcon Occasional Occasional Rare Rare
Prairie Falcon Rare Rare Rare Extremely Rare
Wild Turkey Rare Rare Rare Rare
California Quail Common Common Common Common
Clapper Rail Extirpated Extirpated Extirpated Extirpated
Virginia Rail Uncommon Uncommon Uncommon Uncommon
Sora Uncommon Uncommon Occasional Extremely Rare
Common Moorhen Rare Rare Rare
American Coot Common Common Common Common
Sandhill Crane Extremely Rare Extremely Rare
Black-bellied Plover Common Common Common Common
Snowy Plover Uncommon Uncommon Uncommon Uncommon
Wilson's Plover Extremely Rare
Semipalmated Plover Common Uncommon Common Extremely Rare
Mountain Plover Extremely Rare Extremely Rare
Killdeer Common Common Common Common
Black-necked Stilt Common Common Common Common
American Avocet Common Common Common Common
Greater Yellowlegs Common Common Common
Lesser Yellowlegs Uncommon Occasional Uncommon
Willet Common Common Common Uncommon
Wandering Tattler Extremely Rare Extremely Rare Extremely Rare
Solitary Sandpiper Rare
Spotted Sandpiper Uncommon Uncommon Uncommon
Whimbrel Common Uncommon Common Rare
Long-billed Curlew Common Common Common Occasional
Marbled Godwit Common Common Common Uncommon
Bar-tailed Godwit Extremely Rare
Ruddy Turnstone Uncommon Uncommon Uncommon Rare
Black Turnstone Rare Extremely Rare Rare Extremely Rare
Surfbird
Red Knot Uncommon Uncommon Uncommon Extremely Rare
Sanderling Common Common Common Rare
Semipalmated Sandpiper Occasional Extremely Rare
Western Sandpiper Common Common Common Extremely Rare
Red-necked Stint Extremely Rare
Little Stint Extremely Rare
Least Sandpiper Common Common Common
Baird's Sandpiper Uncommon Extremely Rare
Pectoral Sandpiper Uncommon Extremely Rare
Sharp-tailed Sandpiper Rare
Rock Sandpiper Extremely Rare
Dunlin Common Common Common Extremely Rare
Stilt Sandpiper Rare Extremely Rare
Ruff Rare Extremely Rare Extremely Rare
Short-billed Dowitcher Common Common Common Extremely Rare
Long-billed Dowitcher Common Common Common
Common Snipe Uncommon Uncommon Uncommon
Wilson's Phalarope Uncommon Extremely Rare Uncommon Occasional
Red-necked Phalarope Common Extremely Rare Uncommon Rare
Red Phalarope Occasional Rare Rare Extremely Rare
Arctic Skua Occasional Extremely Rare Extremely Rare
Laughing Gull Extremely Rare Extremely Rare
Little Gull Extremely Rare
Franklin's Gull Rare Extremely Rare Rare Extremely Rare
Bonaparte's Gull Common Uncommon Occasional Uncommon
Heermann's Gull Common Uncommon Occasional Uncommon
Common Gull Occasional Uncommon Occasional
Ring-billed Gull Common Common Common Uncommon
California Gull Common Common Common Uncommon
Herring Gull Occasional Common Occasional
Thayer's Gull Occasional Uncommon Occasional
Western Gull Common Common Common Common
Glaucous-winged Gull Common Common Common Occasional
Glaucous Gull Rare Extremely Rare
Sabine's Gull Extremely Rare Extremely Rare
Swallow-tailed Gull Extremely Rare
Black-legged Kittiwake Rare Rare Extremely Rare
Caspian Tern Common Extremely Rare Common Common
Royal Tern Extremely Rare Extremely Rare
Elegant Tern Common Extremely Rare Rare Common
Common Tern Uncommon Rare Rare
Arctic Tern Occasional Occasional
Forster's Tern Common Uncommon Common Common
California Least Tern Occasional Occasional Rare
White-winged Tern Extremely Rare
Black Tern Occasional Occasional
Black Skimmer Rare Extremely Rare Rare Rare
Common Guillemot Rare Rare Rare Rare
Pigeon Guillemot Occasional Rare Rare
Xantus's Murrelet Extremely Rare
Marbled Murrelet Extremely Rare Extremely Rare
Ancient Murrelet Extremely Rare Extremely Rare
Cassin's Auklet Rare Extremely Rare
Rhinoceros Auklet Rare Extremely Rare
Horned Puffin Extremely Rare
Tufted Puffin Extremely Rare
Rock Pigeon Common Common Common Common
Band-tailed Pigeon Uncommon Uncommon Uncommon Uncommon
White-winged Dove Extremely Rare
Mourning Dove Common Common Common Common
Barn Owl Uncommon Uncommon Uncommon Uncommon
Western Screech-Owl Rare Rare
Great Horned Owl Common Common Common Common
Northern Pygmy-Owl Extremely Rare
Burrowing Owl Rare Rare Rare Rare
Long-eared Owl Extremely Rare Extremely Rare
Short-eared Owl Rare Rare Rare Rare
Lesser Nighthawk Extremely Rare
White-throated Swift Rare Occasional Rare
Anna's Hummingbird Common Common Common Common
Rufous Hummingbird Occasional Occasional
Allen's Hummingbird Common Common
Black-chinned Hummingbird Extremely Rare
Costa's Hummingbird Extremely Rare
Belted Kingfisher Uncommon Uncommon Uncommon Uncommon
Acorn Woodpecker Common Common Common Common
Lewis's Woodpecker Extremely Rare
Red-breasted Sapsucker Occasional Occasional Occasional
Nuttall's Woodpecker Uncommon Uncommon Uncommon Uncommon
Downy Woodpecker Uncommon Uncommon Uncommon Uncommon
Hairy Woodpecker Uncommon Uncommon Uncommon Uncommon
Olive-sided Flycatcher Rare Uncommon Uncommon
Western Wood Pewee Uncommon Uncommon Uncommon
Willow Flycatcher Occasional Rare
Dusky-capped Flycatcher Extremely Rare
Ash-throated Flycatcher Rare Extremely Rare Uncommon Uncommon
Black Phoebe Common Common Common Common
Say's Phoebe Uncommon Uncommon Rare
Eastern Phoebe Extremely Rare
Tropical Kingbird Extremely Rare
Cassin's Kingbird Extremely Rare
Western Kingbird Rare Rare Extremely Rare
Eastern Kingbird Extremely Rare
Scissor-tailed Flycatcher Extremely Rare Extremely Rare
Loggerhead Shrike Uncommon Uncommon Uncommon Uncommon
Blue-headed Vireo Extremely Rare
Warbling Vireo Common Common Uncommon
Red-eyed Vireo Extremely Rare
Tree Swallow Common Rare Common Common
Violet-green Swallow Common Rare Common Common
Northern Rough-winged Swallow Rare Extremely Rare Occasional Rare
Sand Martin Rare Extremely Rare Rare Rare
Cliff Swallow Common Common Common
Barn Swallow Common Extremely Rare Common Common
Steller's Jay Rare Rare
Western Scrub-Jay Common Common Common Common
American Crow Common Common Common Common
Yellow-billed Magpie Extremely Rare Extremely Rare
Common Raven Rare Rare Rare Rare
Horned Lark Uncommon Uncommon Rare
Chestnut-backed Chickadee Common Common Common Common
Oak Titmouse Common Common Common Common
Bushtit Common Common Common Common
Red-breasted Nuthatch Occasional Rare
White-breasted Nuthatch Rare
Pygmy Nuthatch Uncommon Uncommon Uncommon Uncommon
Brown Creeper Uncommon Uncommon Uncommon Uncommon
Bewick's Wren Common Common Common Common
House Wren Uncommon Rare Uncommon
Winter Wren Uncommon Uncommon Uncommon Uncommon
Marsh Wren Common Common Common Common
Rock Wren Extremely Rare
Ruby-crowned Kinglet Common Common Common
Golden-crowned Kinglet Rare Rare
Blue-gray Gnatcatcher Rare Rare Rare Rare
Western Bluebird Rare Occasional Uncommon Uncommon
Townsend's Solitaire Extremely Rare
Swainson's Thrush Rare Common Uncommon
Hermit Thrush Uncommon Uncommon Uncommon
American Robin Common Common Common Uncommon
Varied Thrush Rare Rare Rare
Wrentit Common Common Common Common
Northern Mockingbird Uncommon Uncommon Uncommon Uncommon
California Thrasher Uncommon Uncommon Uncommon Uncommon
Sage Thrasher Extremely Rare
European Starling Common Common Common Common
White Wagtail Extremely Rare
American Pipit Uncommon Uncommon Uncommon
Red-throated Pipit Extremely Rare
Cedar Waxwing Common Uncommon Common
Tennessee Warbler Extremely Rare Extremely Rare
Orange-crowned Warbler Common Uncommon Common Common
Nashville Warbler Rare Extremely Rare Rare
Yellow Warbler Common Extremely Rare Uncommon Occasional
Magnolia Warbler Extremely Rare
Yellow-rumped Warbler Common Common Common
Black-throated Gray Warbler Occasional Extremely Rare Occasional
Black-throated Green Warbler Extremely Rare
Townsend's Warbler Common Common Uncommon
Prairie Warbler Extremely Rare Extremely Rare
Palm Warbler Rare Extremely Rare
Blackpoll Warbler Rare
Black-and-white Warbler Rare
Worm-eating Warbler Extremely Rare
Wilson's Warbler Common Extremely Rare Common Common
Canada Warbler Extremely Rare
American Redstart Rare Extremely Rare
Northern Waterthrush Extremely Rare
Common Yellowthroat Common Uncommon Uncommon Uncommon
Summer Tanager Extremely Rare
Western Tanager Uncommon Uncommon
Rose-breasted Grosbeak Extremely Rare
Black-headed Grosbeak Uncommon Extremely Rare Uncommon Uncommon
Blue Grosbeak Extremely Rare Extremely Rare
Lazuli Bunting Occasional Occasional Occasional
Indigo Bunting Extremely Rare Extremely Rare
California Towhee Common Common Common Common
Spotted Towhee Common Common Common Common
Green-tailed Towhee Extremely Rare Extremely Rare
Chipping Sparrow Rare Rare
Clay-colored Sparrow Rare
Brewer's Sparrow Extremely Rare
Vesper Sparrow Extremely Rare
Lark Sparrow Rare
Savannah Sparrow Common Common Common Uncommon
Grasshopper Sparrow Extremely Rare Rare Rare
Fox Sparrow Uncommon Uncommon Uncommon
Song Sparrow Common Common Common Common
Lincoln's Sparrow Uncommon Uncommon Uncommon
Swamp Sparrow Occasional Occasional
White-throated Sparrow Rare Occasional
Harris's Sparrow Extremely Rare
Golden-crowned Sparrow Common Common Common
White-crowned Sparrow Common Common Common Common
Nelson's Sharp-tailed Sparrow Extremely Rare
Dark-eyed Junco Common Common Common Uncommon
Smith's Longspur Extremely Rare
Bobolink Rare
Red-winged Blackbird Common Common Common Common
Tricolored Blackbird Common Common Uncommon Occasional
Western Meadowlark Common Common Common Uncommon
Yellow-headed Blackbird Occasional Extremely Rare Rare
Rusty Blackbird Extremely Rare
Brewer's Blackbird Common Common Common Common
Great-tailed Grackle Rare Rare
Brown-headed Cowbird Uncommon Uncommon Uncommon Uncommon
Orchard Oriole Extremely Rare Extremely Rare
Hooded Oriole Rare Rare
Bullock's Oriole Uncommon Extremely Rare Uncommon
Purple Finch Common Common Common Common
House Finch Common Common Common Common
Pine Siskin Common Uncommon Uncommon Uncommon
Lesser Goldfinch Common Common Common Common
Lawrence's Goldfinch Rare Rare
American Goldfinch Common Common Common Common
House Sparrow Common Common Common Common
American Golden Plover Occasional Extremely Rare
Chestnut-sided Warbler Rare
Lapland Longspur Rare Extremely Rare
Long-tailed Skua Extremely Rare
MacGillivray's Warbler Occasional Occasional
Lesser Sand Plover Extremely Rare
Northern Flicker Common Common Common Uncommon
Pacific Golden Plover Rare Extremely Rare Extremely Rare
Pomarine Skua Rare Rare
Red Crossbill Extremely Rare
Brünnich's Guillemot Extremely Rare
Yellow-bellied Sapsucker Rare Extremely Rare
Red-throated Diver Uncommon Common Uncommon Occasional
Pacific Diver Occasional Uncommon Occasional
Yellow-billed Loon Extremely Rare
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