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x Rough-legged Hawk Rough-legged Hawk Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare  
The Rough-legged Buzzard (Buteo lagopus), called the Rough-legged Hawk in North America, is a medium-large bird of prey. It is between 50 and 60 centimetres long with a 130 cm wingspan. The breeding range is northernmost Europe, Asia, and North...
Elkhorn Slough Bird Checklist    
Checklist of Birds of the City of San Francisco    
Checklist of Birds of Vermont    
x Golden Eagle /guid/9202a8c04000641f8000000004919eac Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare Rare
The Golden Eagle (Aquila chrysaetos) is one of the best known birds of prey in the Northern Hemisphere. Like all eagles, it belongs to the family Accipitridae. Once widespread across the Holarctic, it has disappeared from many of the more heavily...
Elkhorn Slough Bird Checklist Uncommon Uncommon
Checklist of Birds of the City of San Francisco Occasional  
Checklist of Birds of Vermont    
x American Kestrel Americankestrel65 Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The American Kestrel (Falco sparverius) is a small falcon. This bird was (and sometimes still is) colloquially known in North America as the "Sparrow Hawk". This name is misleading because it implies a connection with the Eurasian Sparrowhawk...
Elkhorn Slough Bird Checklist Common Uncommon
Checklist of Birds of the City of San Francisco Uncommon Uncommon
Checklist of the Birds of Muir Woods National Monument Fairly Common Fairly Common
Checklist of the Birds of Sutro Heights Extremely Rare  
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x Merlin   Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare  
The Merlin (Falco columbarius) is a smallish falcon that breeds in northern North America, Europe and Asia. In North America it was once and sometimes still is colloquially called "pigeon hawk" though it is not very closely related to true hawks....
Elkhorn Slough Bird Checklist Rare  
Checklist of Birds of the City of San Francisco Rare  
Checklist of the Birds of Sutro Heights    
Checklist of Birds of Vermont    
x Peregrine Falcon Falco peregrinus nest USFWS Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare  
The Peregrine Falcon (Falco peregrinus), also known simply as the Peregrine, and historically as the "Duck Hawk" in North America, is a cosmopolitan bird of prey in the family Falconidae. It is a large, crow-sized falcon, with a blue-gray back,...
Elkhorn Slough Bird Checklist Rare Rare
Checklist of Birds of the City of San Francisco Uncommon Uncommon
Checklist of the Birds of Sutro Heights Extremely Rare  
Checklist of Birds of Vermont    
x Prairie Falcon Adult bird showing underwing patterntograph by Nick Anich. Checklist of Birds of the San Francisco Bay National Wildlife Refuge    
The Prairie Falcon (Falco mexicanus) is a medium-sized falcon of western North America. It is about the size of a Peregrine Falcon or a crow, with an average length of 40 cm (16 in), wingspan of 1 metre (40 in), and weight of 720 g (1.6 lb). As in...
Elkhorn Slough Bird Checklist Rare Extremely Rare
Checklist of Birds of the City of San Francisco Accidental  
x Ring-necked Pheasant Male and female pheasant Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The Common Pheasant (Phasianus colchicus), is a bird in the pheasant family (Phasianidae). It is native to Asia and has been widely introduced elsewhere as a game bird. In parts of its range, namely in places where none of its relatives occur such...
Checklist of Birds of Vermont    
x California Quail California Quail Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Uncommon
The California Quail, Callipepla californica, also known as the California Valley Quail or Valley Quail, is a small ground-dwelling bird in the New World quail family. It is the state bird of California. These birds have a curving crest or plume,...
Elkhorn Slough Bird Checklist Common Common
Checklist of Birds of the City of San Francisco Uncommon Uncommon
Checklist of the Birds of Muir Woods National Monument Fairly Common Fairly Common
Checklist of the Birds of Sutro Heights Extremely Rare  
x Black Rail Laterallus jamaicensisAAP026CB Checklist of Birds of the San Francisco Bay National Wildlife Refuge Occasional Occasional
The Black Rail (Laterallus jamaicensis) is a mouse-sized member of the Rallidae family of birds. It is found in scattered parts of North America and the Pacific region of South America, usually in coastal salt marshes but also in some freshwater...
Checklist of Birds of the City of San Francisco    
x Clapper Rail California Clapper RailRallus longirostris obsoletus Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The Clapper Rail (Rallus longirostris) is a member of the rail family, Rallidae. It is found along the east coast of North America, the coasts and some islands of the Caribbean, and across northern South America to eastern Brazil. On the west coast,...
Elkhorn Slough Bird Checklist Extirpated Extirpated
Checklist of Birds of the City of San Francisco Accidental  
Checklist of Birds of Vermont    
x Virginia Rail VirginiaRail23 Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Uncommon
The Virginia Rail, Rallus limicola, is a small waterbird, of the family Rallidae. Adults are mainly brown, darker on the back and crown, with orange-brown legs. They have long toes, a short tail and a long slim reddish bill. Their cheeks are grey,...
Elkhorn Slough Bird Checklist Uncommon Uncommon
Checklist of Birds of the City of San Francisco Uncommon Uncommon
Checklist of Birds of Vermont    
x Common Moorhen Common Moorhen Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Uncommon
The Common Moorhen (Gallinula chloropus) is a bird in the Rail family with an almost worldwide distribution. It is often called the "Common Waterhen", especially in the British Isles, and this is a more descriptive name because the bird lives around...
Elkhorn Slough Bird Checklist Rare  
Checklist of Birds of the City of San Francisco Occasional Occasional
Checklist of Birds of Vermont    
x American Coot none American Coot (Fulica americana) may be found in the Cross Creek WMA Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The American Coot (Fulica americana) is a bird of the family Rallidae, inhabiting wetlands and open water bodies. About 16 inches (40 cm) in length and weighing 1.4 lb (0.65 kg), adults have a short thick white bill and white frontal shield, which...
Elkhorn Slough Bird Checklist Common Common
Checklist of Birds of the City of San Francisco Abundant Abundant
Checklist of the Birds of Sutro Heights Rare Extremely Rare
Checklist of Birds of Vermont    
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x Black-bellied Plover Grey Plover (illustration) Checklist of Birds of the San Francisco Bay National Wildlife Refuge Abundant Uncommon
The Grey Plover (Pluvialis squatarola), known as the Black-bellied Plover in North America, is a medium-sized plover breeding in arctic regions. It is a long-distance migrant, with a nearly worldwide coastal distribution when not breeding. They are...
Elkhorn Slough Bird Checklist Common Common
Checklist of Birds of the City of San Francisco Fairly Common Uncommon
Checklist of Birds of Vermont    
x American Golden Plover /wikipedia/images/commons_id/706659 Checklist of Birds of the City of San Francisco    
The American Golden Plover (Pluvialis dominica) is a medium-sized plover. Adults are spotted gold and black on the crown, back and wings. Their face and neck are black with a white border; they have a black breast and a dark rump. The legs are black...
Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare Rare
Elkhorn Slough Bird Checklist Extremely Rare  
Checklist of Birds of Vermont    
Checklist of the Birds of Tennessee National Wildlife Refuge    
x Kentish Plover Snowy Plover Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Common
The Kentish Plover, Charadrius alexandrinus, is a small wader in the plover bird family. Despite its name, this species no longer breeds in Kent, or even Great Britain. It breeds in most subtropical and tropical parts of the world, from southern...
Elkhorn Slough Bird Checklist Uncommon Uncommon
Checklist of Birds of the City of San Francisco Uncommon Rare
x Semipalmated Plover Semipalmated Plover Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Uncommon
The Semipalmated Plover (Charadrius semipalmatus) is a small plover. Adults have a grey-brown back and wings, a white belly, and a white breast with one black neckband. They have a brown cap, a white forehead, a black mask around the eyes and a...
Elkhorn Slough Bird Checklist Common Extremely Rare
Checklist of Birds of the City of San Francisco Uncommon Rare
Checklist of Birds of Vermont    
x Killdeer Charadrius vociferus Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The killdeer (Charadrius vociferus) is a medium-sized plover. Adults have a brown back and wings, a white belly, and a white breast with two black bands. The rump is tawny orange. The face and cap are brown with a white forehead. They have an orange...
Elkhorn Slough Bird Checklist Common Common
Checklist of Birds of the City of San Francisco Fairly Common Fairly Common
Checklist of the Birds of Sutro Heights    
Checklist of Birds of Vermont    
x Black-necked Stilt Himantopus mexicanus Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The Black-necked Stilt (Himantopus mexicanus) is a locally abundant shorebird of American wetlands and coastlines. It is found from the coastal areas of California through much of the interior western United States and along the Gulf of Mexico as...
Elkhorn Slough Bird Checklist Common Common
Checklist of Birds of the City of San Francisco Occasional  
x American Avocet Summer plumage Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The American Avocet (Recurvirostra americana) is a large wader in the avocet and stilt family, Recurvirostridae. This avocet has long, thin, gray legs, giving it its colloquial name, "blue shanks". The plumage is black and white on the back with...
Elkhorn Slough Bird Checklist Common Common
Checklist of Birds of the City of San Francisco Uncommon Uncommon
Checklist of Birds of Vermont    
Checklist of the Birds of Tennessee National Wildlife Refuge   Rare
x Greater Yellowlegs Greater Yellowlegs Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Uncommon
The Greater Yellowlegs, Tringa melanoleuca, is a large North American shorebird, similar in appearance to the smaller Lesser Yellowlegs. Its closest relative, however, is the Greenshank, which together with the Spotted Redshank form a close-knit...
Elkhorn Slough Bird Checklist Common  
Checklist of Birds of the City of San Francisco Uncommon Rare
Checklist of the Birds of Sutro Heights Extremely Rare  
Checklist of Birds of Vermont    
x Lesser Yellowlegs Yellowlegs - natures pics Checklist of Birds of the San Francisco Bay National Wildlife Refuge Occasional Occasional
The Lesser Yellowlegs, Tringa flavipes, is a medium-sized shorebird similar in appearance to the larger Greater Yellowlegs. It is not closely related to this bird, however, but instead to the much larger and quite dissimilar Willet (Pereira & Baker,...
Elkhorn Slough Bird Checklist Uncommon  
Checklist of Birds of the City of San Francisco Accidental  
Checklist of Birds of Vermont    
x Willet Catoptrophorus semipalmatus edit Checklist of Birds of the San Francisco Bay National Wildlife Refuge Abundant Common
The Willet, Tringa semipalmata (formerly in the monotypic genus Catoptrophorus, as Catoptrophorus semipalmatus), is a large shorebird in the sandpiper family. It is a good-sized and stout scolopacid, the largest of the shanks. Its closest relative...
Elkhorn Slough Bird Checklist Common Uncommon
Checklist of Birds of the City of San Francisco Fairly Common Uncommon
Checklist of the Birds of Sutro Heights Uncommon Extremely Rare
Checklist of Birds of Vermont    
x Wandering Tattler Wandering Tattler Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare Rare
The Wandering Tattler, Tringa incana (formerly Heteroscelus incanus: Pereira & Baker, 2005; Banks et al., 2006), is a medium-sized wading bird. It is similar in appearance to the closely related Gray-tailed Tattler, T. brevipes. The tattlers are...
Elkhorn Slough Bird Checklist Extremely Rare  
Checklist of Birds of the City of San Francisco Uncommon  
Checklist of the Birds of Sutro Heights Extremely Rare Extremely Rare
x Spotted Sandpiper Breeding plumage Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare Rare
The Spotted Sandpiper (Actitis macularia) is a small shorebird, 18–20 cm long. Together with its sister species, the Common Sandpiper (A. hypoleucos) they make up the genus Actitis. They replace each other geographically; stray birds may settle down...
Elkhorn Slough Bird Checklist Uncommon  
Checklist of Birds of the City of San Francisco Uncommon Rare
Checklist of the Birds of Sutro Heights Extremely Rare  
Checklist of Birds of Vermont    
x Whimbrel European subspecies of Whimbrel Numenius phaeopus phaeopus Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Occasional
The Whimbrel Numenius phaeopus, is a wader in the large family Scolopacidae. It is the one of the most widespread of the curlews, breeding across much of subarctic North America, Europe and Asia as far south as Scotland. This is a migratory species...
Elkhorn Slough Bird Checklist Common Rare
Checklist of Birds of the City of San Francisco Uncommon Rare
Checklist of the Birds of Sutro Heights Rare Rare
Checklist of Birds of Vermont    
x Long-billed Curlew Long-billed Curlew (Numenius americanus)Fishing Pier, Goose Island State Park, Texas Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Uncommon
The Long-billed Curlew, Numenius americanus, is a large North American shorebird of the family Scolopacidae. This species was also called "sicklebird" and the "candlestick bird". The species is native to central and western North America. In the...
Elkhorn Slough Bird Checklist Common Occasional
Checklist of Birds of the City of San Francisco Uncommon Rare
Checklist of the Birds of Sutro Heights    
x Marbled Godwit MarbledGodwit23 Checklist of Birds of the San Francisco Bay National Wildlife Refuge Abundant Common
The Marbled Godwit, Limosa fedoa, is a large shorebird. Adults have long blue-grey hairy legs and a very long pink bill with a slight upward curve and dark at the tip. The long neck, breast and belly are pale brown with dark bars on the breast and...
Elkhorn Slough Bird Checklist Common Uncommon
Checklist of Birds of the City of San Francisco Fairly Common Rare
Checklist of the Birds of Sutro Heights Rare Rare
x Ruddy Turnstone Adult in breeding plumage. Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Uncommon
The Ruddy Turnstone (Arenaria interpres) is a small wading bird, one of two species of turnstone in the genus Arenaria. It is now classified in the sandpiper family Scolopacidae but was formerly sometimes placed in the plover family Charadriidae. It...
Elkhorn Slough Bird Checklist Uncommon Rare
Checklist of Birds of the City of San Francisco Rare  
Checklist of the Birds of Sutro Heights Rare  
Checklist of Birds of Vermont    
x Black Turnstone Breeding-plumaged adult in Alaska. Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Uncommon
The Black Turnstone (Arenaria melanocephala) is a species of small wading bird. It is one of two species of turnstone in the genus Arenaria, the Ruddy Turnstone (A. interpres) being the other. It is now classified in the sandpiper family...
Elkhorn Slough Bird Checklist Rare Extremely Rare
Checklist of Birds of the City of San Francisco Fairly Common Rare
Checklist of the Birds of Sutro Heights Uncommon Uncommon
x Red Knot winter plumage Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Uncommon
The Red Knot, Calidris canutus (just Knot in Europe), is a medium sized shorebird which breeds in tundra and the Arctic Cordillera in the far north of Canada, Europe, and Russia. It is a large member of the Calidris sandpipers, second only to the...
Elkhorn Slough Bird Checklist Uncommon Extremely Rare
Checklist of Birds of the City of San Francisco Accidental  
Checklist of Birds of Vermont    
x Sanderling A sanderling in winter plumage Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Uncommon
The Sanderling (Calidris alba, syn. Crocethia alba or Erolia alba) is a small wader. It is a circumpolar Arctic breeder, and is a long-distance migrant, wintering south to South America, South Europe, Africa, and Australia. It is highly gregarious...
Elkhorn Slough Bird Checklist Common Rare
Checklist of Birds of the City of San Francisco Fairly Common Rare
Checklist of the Birds of Sutro Heights Rare Uncommon
Checklist of Birds of Vermont    
x Western Sandpiper Western Sandpiper Checklist of Birds of the San Francisco Bay National Wildlife Refuge Abundant Common
The Western Sandpiper, Calidris or Erolia mauri, is a small shorebird. Adults have dark legs and a short thin dark bill, thinner at the tip. The body is brown on top and white underneath. They are reddish-brown on the crown. This bird can be...
Elkhorn Slough Bird Checklist Common Extremely Rare
Checklist of Birds of the City of San Francisco Uncommon Rare
Checklist of Birds of Vermont    
x Least Sandpiper LeastSandpiper23 Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The Least Sandpiper, Calidris or Erolia minutilla, is the smallest shorebird. This species has yellowish legs and a short thin dark bill. Breeding adults are brown with dark brown streaks on top and white underneath. They have a light line above the...
Elkhorn Slough Bird Checklist Common  
Checklist of Birds of the City of San Francisco Fairly Common Rare
Checklist of Birds of Vermont    
x Wood Duck Male Wood Duck Aix sponsa Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare Rare
The Wood Duck or Carolina Duck (Aix sponsa) is a medium-sized perching duck. A typical adult is about 19 inches in length with an average wingspan of 29 inches. This is about three-quarters of the length of an adult Mallard. It shares its genus with...
Elkhorn Slough Bird Checklist Rare  
Checklist of Birds of the City of San Francisco Rare Rare
Checklist of Birds of Vermont    
x Canvasback Canvasback (Aythya valisineria) Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Occasional
The Canvasback (Aythya valisineria), historically known in the United States as a "Sheldrake", is a large diving duck, 48–60 cm long and weighing 1270 g. The adult male has a black bill, a red head and neck, a black breast, red eyes and a whitish...
Elkhorn Slough Bird Checklist Uncommon  
Checklist of Birds of the City of San Francisco Uncommon  
Checklist of Birds of Vermont    
x Greater Scaup Female (front) and male (rear) Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Rare
The Greater Scaup (Aythya marila), just Scaup in Europe, or colloquially known as "Bluebill", is a small diving duck. It breeds on the ground by lakes and bogs on the tundra and at the northern limits of the boreal forest across Arctic and subarctic...
Elkhorn Slough Bird Checklist Uncommon Occasional
Checklist of Birds of the City of San Francisco Fairly Common  
Checklist of the Birds of Sutro Heights    
Checklist of Birds of Vermont    
x Gadwall Anas-strepera-001 Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Common
The Gadwall (Anas strepera) is a common and widespread duck of the family Anatidae. This species was first described by Linnaeus in his Systema naturae in 1758 under its current scientific name. Its conservation status is Least Concern. The Gadwall...
Elkhorn Slough Bird Checklist Common Common
Checklist of Birds of the City of San Francisco Uncommon Rare
Checklist of the Birds of Sutro Heights Extremely Rare Extremely Rare
Checklist of Birds of Vermont    
x Sora Sora (Porzana carolina) Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Uncommon
The Sora (Porzana carolina) is a small waterbird, of the family Rallidae, sometimes also referred to as the Sora Rail or Sora Crake. Adults Soras are 20–25 centimetres (7.9–9.8 in) long, with dark-marked brown upperparts, a blue-grey face and...
Elkhorn Slough Bird Checklist Occasional Extremely Rare
Checklist of Birds of the City of San Francisco Uncommon Uncommon
Checklist of Birds of Vermont    
x Semipalmated Sandpiper Semipalmated Sandpiper (Calidris pusilla) Checklist of Birds of the San Francisco Bay National Wildlife Refuge   Rare
The Semipalmated Sandpiper, Calidris pusilla, is a very small shorebird. It is sometimes separated with other "stints" in Erolia but although these apparently form a monophyletic group, the present species' old genus Ereunetes had been proposed...
Elkhorn Slough Bird Checklist Extremely Rare  
Checklist of Birds of the City of San Francisco    
Checklist of Birds of Vermont    
x Baird's Sandpiper BairdSandpiper23 Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare Rare
The Baird's Sandpiper (Calidris bairdii) is a small shorebird. It is among those calidrids sometimes separated in Erolia. Adults have black legs and a short thin dark bill. They are dark brown on top and mainly white underneath with a black patch on...
Elkhorn Slough Bird Checklist Extremely Rare  
Checklist of Birds of the City of San Francisco   Accidental
Checklist of Birds of Vermont    
Checklist of the Birds of Tennessee National Wildlife Refuge    
x Pectoral Sandpiper Adult brooding hatchlings Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare Rare
The Pectoral Sandpiper, "Calidris" melanotos, is a small wader. It is sometimes separated with the "stint" sandpipers in Erolia. This may or may not represent a good monophyletic group, depending on the placement of the phylogenetically enigmatic...
Elkhorn Slough Bird Checklist Extremely Rare  
Checklist of Birds of the City of San Francisco    
Checklist of Birds of Vermont    
x Dunlin Breeding adult Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Occasional
The Dunlin, Calidris alpina, is a small wader, sometimes separated with the other "stints" in Erolia. It is a circumpolar breeder in Arctic or subarctic regions. Birds that breed in northern Europe and Asia are long-distance migrants, wintering...
Elkhorn Slough Bird Checklist Common Extremely Rare
Checklist of Birds of the City of San Francisco Uncommon Accidental
Checklist of Birds of Vermont    
x Short-billed Dowitcher ShortBillDowitcher23 Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Uncommon
The Short-billed Dowitcher, Limnodromus griseus, like its congener the Long-billed Dowitcher, is a medium-sized, stocky, long-billed shorebird in the family Scolopacidae. It is an inhabitant of North America, Middle America, and northern South...
Elkhorn Slough Bird Checklist Common Extremely Rare
Checklist of Birds of the City of San Francisco Uncommon Rare
Checklist of Birds of Vermont    
x Long-billed Dowitcher Dowitcher - natures pics Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Occasional
The Long-billed Dowitcher, Limnodromus scolopaceus, is a medium-sized shorebird. Adults have yellowish legs and a long straight dark bill. The body is dark brown on top and reddish underneath with spotted throat and breast, bars on flanks. The tail...
Elkhorn Slough Bird Checklist Common  
Checklist of Birds of the City of San Francisco Occasional  
Checklist of Birds of Vermont    
x Common Snipe Commonsnipe67 Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Rare
The Common Snipe (Gallinago gallinago), also called a Fantail Snipe, European Sandpiper, or weet-weet, is a small, stocky shorebird. The breeding habitat is marshes, bogs, tundra and wet meadows in Iceland, the Faroes, northern Europe and Russia....
Elkhorn Slough Bird Checklist Uncommon  
x Wilson's Phalarope Wilson's Phalarope Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Abundant
The Wilson's Phalarope, Phalaropus tricolor, is a small wader. This bird, the largest of the phalaropes, breeds in the prairies of North America in western Canada and the western United States. It is migratory, wintering around the central Andes in...
Elkhorn Slough Bird Checklist Uncommon Occasional
Checklist of Birds of the City of San Francisco Accidental  
Checklist of Birds of Vermont    
x Red-necked Phalarope Red-necked Phalarope Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Abundant
The Red-necked Phalarope, Phalaropus lobatus, is a small wader. This phalarope breeds in the Arctic regions of North America and Eurasia. It is migratory, and, unusually for a wader, winters at sea on tropical oceans. Red-necked Phalarope is about...
Elkhorn Slough Bird Checklist Uncommon Rare
Checklist of Birds of the City of San Francisco Uncommon  
Checklist of the Birds of Sutro Heights Extremely Rare  
Checklist of Birds of Vermont    
x Red Phalarope RedPhalarope23 Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare  
The Red Phalarope (called Grey Phalarope in Europe), Phalaropus fulicarius, is a small wader. This phalarope breeds in the Arctic regions of North America and Eurasia. It is migratory, and, unusually for a wader, migrating mainly on oceanic routes...
Elkhorn Slough Bird Checklist Rare Extremely Rare
Checklist of Birds of the City of San Francisco Rare  
Checklist of the Birds of Sutro Heights    
Checklist of Birds of Vermont    
x Arctic Skua Arctic Skua Checklist of Birds of the San Francisco Bay National Wildlife Refuge   Rare
The Parasitic Jaeger , Stercorarius parasiticus, known as the Arctic Skua or Parasitic Skua in some publications, is a seabird in the skua family Stercorariidae. This species breeds in the north of Eurasia and North America, with significant...
Elkhorn Slough Bird Checklist Extremely Rare  
Checklist of Birds of the City of San Francisco Rare Rare
Checklist of the Birds of Sutro Heights   Uncommon
Checklist of Birds of Vermont    
x Franklin's Gull Franklin's Gull Checklist of Birds of the San Francisco Bay National Wildlife Refuge    
The Franklin's Gull (Leucophaeus pipixcan) is a small gull. It breeds in central provinces of Canada and adjacent states of the northern USA. It is migratory, wintering in the Caribbean, Peru, Chile, and Argentina. This species is easy to identify....
Elkhorn Slough Bird Checklist Rare Extremely Rare
Checklist of Birds of the City of San Francisco Accidental  
Checklist of Birds of Vermont    
x Bonaparte's Gull Bonaparte's Gull Checklist of Birds of the San Francisco Bay National Wildlife Refuge Abundant Common
The Bonaparte's Gull (Chroicocephalus philadelphia) is a small gull. Adults are 31–34 cm long with a 79–84 cm wingspan. They have a black hood and a short thin dark bill. The body is mainly white with pale grey back and upper wings. The underwing is...
Elkhorn Slough Bird Checklist Occasional Uncommon
Checklist of Birds of the City of San Francisco Uncommon Rare
Checklist of the Birds of Sutro Heights Extremely Rare  
Checklist of Birds of Vermont    
x Heermann's Gull Heermann's Gull in breeding adult plumage Checklist of Birds of the San Francisco Bay National Wildlife Refuge Rare Uncommon
The Heermann's Gull (Larus heermanni) is a gull resident in the United States and Mexico. Of the current population of about 150,000 pairs, 90% nest on the island of Isla Rasa off Baja California in the Gulf of California, with smaller colonies as...
Elkhorn Slough Bird Checklist Occasional Uncommon
Checklist of Birds of the City of San Francisco Fairly Common Fairly Common
Checklist of the Birds of Sutro Heights Extremely Rare Abundant
x Common Gull Common Gull Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon Rare
The Common Gull, Mew Gull or Sea Mew (Larus canus) is a medium-sized gull which breeds in northern Asia, northern Europe and northwestern North America. It migrates further south in winter. Its name does not indicate that it is an abundant species,...
Elkhorn Slough Bird Checklist Occasional  
Checklist of Birds of the City of San Francisco Fairly Common Occasional
Checklist of the Birds of Sutro Heights Extremely Rare  
x Ring-billed Gull Ring-billed Gull Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The Ring-billed Gull (Larus delawarensis) is a medium-sized gull. Adults are 49 cm (19 in) length and with a 124 cm (49 in) wingspan. They have a white head, neck and underparts and a relatively short, yellow bill with a dark ring. The back and...
Elkhorn Slough Bird Checklist Common Uncommon
Checklist of Birds of the City of San Francisco Uncommon Uncommon
Checklist of the Birds of Sutro Heights Extremely Rare  
Checklist of Birds of Vermont    
x California Gull California Gull Checklist of Birds of the San Francisco Bay National Wildlife Refuge Abundant Abundant
The California Gull Larus californicus is a medium-sized gull, smaller than the Herring Gull but larger than the Ring-billed Gull. Adults are similar in appearance to the Herring Gull, but have a smaller yellow bill with a black ring, yellow legs,...
Elkhorn Slough Bird Checklist Common Uncommon
Checklist of Birds of the City of San Francisco Fairly Common Uncommon
Checklist of the Birds of Sutro Heights Extremely Rare Extremely Rare
x Herring Gull Herring Gull Checklist of Birds of the San Francisco Bay National Wildlife Refuge Abundant Occasional
The Herring Gull, Larus argentatus, is a large gull (up to 26 inches or 66 cm long), and is the most abundant and best known of all gulls along the shores of Asia, western Europe, and North America. It breeds across North America, Europe and Asia....
Elkhorn Slough Bird Checklist Occasional  
Checklist of Birds of the City of San Francisco Rare Occasional
Checklist of the Birds of Sutro Heights Extremely Rare  
Checklist of Birds of Vermont    
x Thayer's Gull THGUc Checklist of Birds of the San Francisco Bay National Wildlife Refuge Uncommon  
The Thayer's Gull (Larus thayeri) is a large gull native to North America that breeds in the Arctic islands of Canada and primarily winters on the Pacific coast, from southern Alaska to the Gulf of California, though there are also wintering...
Elkhorn Slough Bird Checklist Occasional  
Checklist of Birds of the City of San Francisco Rare Occasional
Checklist of the Birds of Sutro Heights Extremely Rare  
x Western Gull Gull ca usa Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Common
The Western Gull, Larus occidentalis, is a large white-headed gull that lives on the western coast of North America. It was previously considered conspecific with the Yellow-footed Gull (Larus livens) of the Gulf of California. The Western Gull...
Elkhorn Slough Bird Checklist Common Common
Checklist of Birds of the City of San Francisco Abundant Abundant
Checklist of the Birds of Sutro Heights Abundant Abundant
x Glaucous-winged Gull Glaucous-winged Gull Checklist of Birds of the San Francisco Bay National Wildlife Refuge Common Uncommon
The Glaucous-winged Gull, Larus glaucescens, is a large, white-headed gull residing from the western coast of Alaska to the coast of Washington. It also breeds on the northwest coast of Alaska. During non-breeding seasons they can be found along the...
Elkhorn Slough Bird Checklist Common Occasional
Checklist of Birds of the City of San Francisco Common Accidental
Checklist of the Birds of Sutro Heights Rare  
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