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Gulls, Terns, and Skimmers50 Bird Species
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Forster's TernAlternate Adult has gray back and wings with pale primaries, white underparts, deeply forked tail longer than folded wings, black cap and nape, orange bill with black tip, and orange legs. Basic Adult has white underparts, black bill, dark wingtips, and white head with black mask around eye. Sexes ar more... Length: 33 cm Wingspan: 79 cm |
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Franklin's GullAlternate Adult is crisply plumaged, with white underparts, gray wings and back, black wingtips with white spots at rest, black legs, clean black head, broken white eye ring, and deep red bill with black spot at tip. Underparts are sometimes tinted pink. In flight, black wingtips are surrounded by wh more... Length: 37 cm Wingspan: 91 cm |
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Glaucous GullA large, bulky, pale, four-year gull of northern latitudes; standing or sitting birds show white wingtips at all ages. Alternate Adult is entirely white with pale gray mantle; broad white trailing edge to the wing that widens on the mostly white primaries, eye is yellow, legs are pink, and bill is ye more... Length: 69 cm Wingspan: 152 cm |
Glaucous-winged GullA large, pink-legged four-year gull of the Pacific Coast. Alternate Adult has medium gray mantle, slightly darker gray wingtips with white subterminal spots and very limited white tips on the outer primaries, white body, dark eye, pink legs, and yellow bill with red spot at the tip. Basic Adult has f more... Length: 66 cm Wingspan: 147 cm |
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Gray-hooded GullMedium-sized, three-year gull with long bill and legs. Adult: Distinctive pale-gray hood. Pale eye. Red bill. White neck, underparts and tail. Pale gray back and wings. Black wingtips with small white mirrors. Red legs. In flight, upper wing has distinctive white wedge on leading edge to outer wing. more... Length: 41 cm Wingspan: 109 cm |
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Great Black-backed GullA very large, bulky, blocky-headed, four-year gull of the Atlantic. Alternate Adult has dark slate-gray (near black) mantle that is darker than any other regular North American gull, black wingtips with small white spots, white head and underparts, usually pale eye, pink legs, and yellow bill with re more... Length: 76 cm Wingspan: 165 cm |
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Gull-billed TernA bulky, chunky tern of Gulf and Atlantic coasts. Alternate Adult has silvery-gray wings, short white tail, white underparts, long black legs, black cap and nape, and thick, blunt, black bill. Basic Adult has white head with small black patch behind eye. Juvenile has very faint patterning on back and more... Length: 36 cm Wingspan: 86 cm |
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Heermann's GullA medium-sized, dark, red-billed, three-year gull of the Pacific. Alternate Adult is unmistakable, crisp sooty-gray overall, with clean gray underparts and neck, dark gray wings and back, black legs, white head, and thin red bill. In flight, the black primaries and secondaries contrast with the gray more... Length: 48 cm Wingspan: 130 cm |
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Herring GullA large, pink-legged, four-year gull. Alternate Adult has pale pearly gray mantle, black wingtips, white underparts and head, pale yellow eye, pink legs, and a yellow bill with red spot at the tip. Shows similar amount of black on both upper and undersides of wingtips. Basic Adult has dark brown stre more... Length: 64 cm Wingspan: 147 cm |
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Iceland GullThe wing tip pattern on this species is extremely variable, with some individuals approaching Thayer's Gull. Some consider the two to be the same species. Two subspecies of Iceland Gull are currently recognized, Iceland Gull and Kumlien's Gull, the latter of which is most likely to be found in the U. more... Length: 51 cm Wingspan: 130 cm |
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Ivory GullThis small gull of the high Arctic is the only species of gull that is entirely white. The legs are very short and black, and the wing tips extend well beyond the tail. Adult: Plumage is entirely white. The bill is blue-gray at the base, yellow to orange at the tip. The eye is dark, with a thin red e more... Length: 43 cm Wingspan: 91 cm |
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Kelp GullAdult: Blackish gray mantle shows little contrast with black primaries. The primaries show small black tips and a small mirror on the outermost primary (P10, and sometimes on P9). The thick bill is yellow with an orange-red gonydeal spot. The legs range from greenish to yellow. The eyes can be pale o more... Length: 53 cm Wingspan: 135 cm |
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Large-billed TernThis striking medium-sized tern has a disproportionately long, thick pointed bill that is entirely yellow and a wing pattern that resembles that of a Sabine's Gull. Alternate Adult: Entirely white below, narrow white forehead separates solid black crown from the bill. Black crown dips well below the more... Length: 37 cm Wingspan: 94 cm |
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Laughing GullThis is the largest and most common hooded gull of the Atlantic and Gulf Coasts. In all plumages, note the long wing projection with all-dark primaries, the long slightly drooping bill, and narrow white crescents above and below the eyes. Alternate Adult: Mantle is dark gray with long black wing tips more... Length: 38 cm Wingspan: 97 cm |
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Least TernNorth America's smallest tern is tiny when compared to other mostly white terns. Alternate Adult: Combines a diagnostic all-yellow bill with black cap and crisply marked white forehead. Back and upper wings are silvery gray and the underparts and tail are entirely white. In flight the black outer pri more... Length: 23 cm Wingspan: 51 cm |
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Lesser Black-backed GullThis European species is becoming increasingly common in North America in winter. In all plumages, note the rounded head, slender bill, and very long wings extending well beyond the tail. Alternate Adult: The mantle is slate gray, usually lighter than Great Black-backed Gull, though some birds from W more... Length: 50 cm Wingspan: 137 cm |
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Forster's Tern
29 Photographs -
Franklin's Gull
9 Photographs -
Glaucous Gull
8 Photographs -
Glaucous-winged Gull
6 Photographs -
Gray-hooded Gull
8 Photographs -
Great Black-backed Gull
2 Photographs -
Gull-billed Tern
1 Photograph -
Heermann's Gull
31 Photographs -
Herring Gull
18 Photographs -
Iceland Gull
12 Photographs -
Ivory Gull
10 Photographs -
Kelp Gull
1 Photograph -
Large-billed Tern
1 Photograph -
Laughing Gull
23 Photographs -
Least Tern
15 Photographs -
Lesser Black-backed Gull
19 Photographs
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Non-vegetated Areas0 species |
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Salt Water |
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Aleutian TernOnychoprion aleuticus |
Open Ocean, Estuaries and Bays, Beaches |
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Arctic TernSterna paradisaea |
Open Ocean, Inshore Waters, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers, Open Country and Grasslands |
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Belcher's GullLarus belcheri |
Open Ocean, Inshore Waters, Rocky Shores, Beaches, Tidal Mudflats and Shallows |
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Black NoddyAnous minutus |
Inshore Waters, Coastal Cliffs, Beaches |
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Black SkimmerRynchops niger |
Estuaries and Bays, Inshore Waters, Beaches, Saltmarshes |
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Black TernChlidonias niger |
Open Ocean, Estuaries and Bays, Tidal Mudflats and Shallows, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers |
Black-headed GullChroicocephalus ridibundus |
Estuaries and Bays, Inshore Waters, Beaches, Tidal Mudflats and Shallows, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
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Black-legged KittiwakeRissa tridactyla |
Open Ocean, Inshore Waters, Coastal Cliffs, Dams, Lakes Resevoirs |
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Black-tailed GullLarus crassirostris |
Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Urban Landscapes, Suburban/residential Landscapes |
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Bonaparte's GullChroicocephalus philadelphia |
Estuaries and Bays, Inshore Waters, Saltmarshes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers, Boreal Forest |
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Bridled TernOnychoprion anaethetus |
Open Ocean, Inshore Waters, Rocky Shores, Beaches, Coastal Dunes |
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Brown NoddyAnous stolidus |
Open Ocean, Inshore Waters, Coastal Cliffs |
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California GullLarus californicus |
Open Ocean, Estuaries and Bays, Inshore Waters, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers |
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Caspian TernHydroprogne caspia |
Estuaries and Bays, Inshore Waters, Beaches, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers |
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Common TernSterna hirundo |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Beaches, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs |
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Elegant TernThalasseus elegans |
Estuaries and Bays, Inshore Waters, Rocky Shores, Beaches, Tidal Mudflats and Shallows |
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Forster's TernSterna forsteri |
Beaches, Tidal Mudflats and Shallows, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs |
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Franklin's GullLeucophaeus pipixcan |
Estuaries and Bays, Tidal Mudflats and Shallows, Saltmarshes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
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Glaucous GullLarus hyperboreus |
Open Ocean, Estuaries and Bays, Inshore Waters, Coastal Cliffs, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
Glaucous-winged GullLarus glaucescens |
Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Beaches, Tidal Mudflats and Shallows, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Lakes Resevoirs |
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Gray-hooded GullChroicocephalus cirrocephalus |
Estuaries and Bays, Inshore Waters, Beaches, Tidal Mudflats and Shallows, Saltmarshes |
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Great Black-backed GullLarus marinus |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Beaches, Coastal Dunes, Saltmarshes, Urban Landscapes, Suburban/residential Landscapes, Dams, Lakes Resevoirs |
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Gull-billed TernGelochelidon nilotica |
Estuaries and Bays, Beaches, Tidal Mudflats and Shallows, Saltmarshes, Urban Landscapes, Fresh Water Marshes |
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Heermann's GullLarus heermanni |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores |
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Herring GullLarus argentatus |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Iceland GullLarus glaucoides |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Beaches, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Ivory GullPagophila eburnea |
Estuaries and Bays, Inshore Waters, Coastal Cliffs, Beaches |
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Kelp GullLarus dominicanus |
Estuaries and Bays, Inshore Waters, Beaches, Lakes Resevoirs |
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Laughing GullLeucophaeus atricilla |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Beaches, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs |
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Least TernSternula antillarum |
Estuaries and Bays, Beaches, Fresh Water Marshes, Ponds and Rivers |
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Lesser Black-backed GullLarus fuscus |
Estuaries and Bays, Inshore Waters, Beaches, Urban Landscapes, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Little GullHydrocoloeus minutus |
Open Ocean, Inshore Waters, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs |
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Mew GullLarus canus |
Estuaries and Bays, Tidal Mudflats and Shallows, Urban Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs |
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Red-legged KittiwakeRissa brevirostris |
Open Ocean, Inshore Waters, Coastal Cliffs |
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Ring-billed GullLarus delawarensis |
Estuaries and Bays, Inshore Waters, Beaches, Tidal Mudflats and Shallows, Saltmarshes, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs |
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Roseate TernSterna dougallii |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Beaches, Tidal Mudflats and Shallows |
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Ross's GullRhodostethia rosea |
Estuaries and Bays, Inshore Waters, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Royal TernThalasseus maximus |
Open Ocean, Estuaries and Bays, Inshore Waters, Beaches |
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Sabine's GullXema sabini |
Open Ocean, Estuaries and Bays, Inshore Waters, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs |
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Sandwich TernThalasseus sandvicensis |
Estuaries and Bays, Inshore Waters, Beaches, Saltmarshes |
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Slaty-backed GullLarus schistisagus |
Inshore Waters, Beaches, Urban Landscapes, Sewage Treatment Plants, Lakes Resevoirs |
Sooty TernOnychoprion fuscatus |
Open Ocean, Inshore Waters |
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Swallow-tailed GullCreagrus furcatus |
Open Ocean |
Thayer's GullLarus thayeri |
Open Ocean, Inshore Waters, Beaches, Urban Landscapes, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Western GullLarus occidentalis |
Estuaries and Bays, Inshore Waters, Coastal Cliffs, Beaches, Urban Landscapes, Ponds and Rivers |
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Yellow-footed GullLarus livens |
Estuaries and Bays, Inshore Waters, Beaches, Tidal Mudflats and Shallows |
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Yellow-legged GullLarus michahellis |
Estuaries and Bays, Inshore Waters, Coastal Cliffs, Beaches |
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Human-altered Areas |
Black-headed GullChroicocephalus ridibundus |
Estuaries and Bays, Inshore Waters, Beaches, Tidal Mudflats and Shallows, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
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Black-legged KittiwakeRissa tridactyla |
Open Ocean, Inshore Waters, Coastal Cliffs, Dams, Lakes Resevoirs |
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Black-tailed GullLarus crassirostris |
Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Urban Landscapes, Suburban/residential Landscapes |
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Bonaparte's GullChroicocephalus philadelphia |
Estuaries and Bays, Inshore Waters, Saltmarshes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers, Boreal Forest |
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California GullLarus californicus |
Open Ocean, Estuaries and Bays, Inshore Waters, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers |
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Franklin's GullLeucophaeus pipixcan |
Estuaries and Bays, Tidal Mudflats and Shallows, Saltmarshes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
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Glaucous GullLarus hyperboreus |
Open Ocean, Estuaries and Bays, Inshore Waters, Coastal Cliffs, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
Glaucous-winged GullLarus glaucescens |
Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Beaches, Tidal Mudflats and Shallows, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Lakes Resevoirs |
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Great Black-backed GullLarus marinus |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Beaches, Coastal Dunes, Saltmarshes, Urban Landscapes, Suburban/residential Landscapes, Dams, Lakes Resevoirs |
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Gull-billed TernGelochelidon nilotica |
Estuaries and Bays, Beaches, Tidal Mudflats and Shallows, Saltmarshes, Urban Landscapes, Fresh Water Marshes |
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Herring GullLarus argentatus |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Iceland GullLarus glaucoides |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Beaches, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Lesser Black-backed GullLarus fuscus |
Estuaries and Bays, Inshore Waters, Beaches, Urban Landscapes, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Little GullHydrocoloeus minutus |
Open Ocean, Inshore Waters, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs |
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Mew GullLarus canus |
Estuaries and Bays, Tidal Mudflats and Shallows, Urban Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs |
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Ring-billed GullLarus delawarensis |
Estuaries and Bays, Inshore Waters, Beaches, Tidal Mudflats and Shallows, Saltmarshes, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs |
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Ross's GullRhodostethia rosea |
Estuaries and Bays, Inshore Waters, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Sabine's GullXema sabini |
Open Ocean, Estuaries and Bays, Inshore Waters, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs |
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Slaty-backed GullLarus schistisagus |
Inshore Waters, Beaches, Urban Landscapes, Sewage Treatment Plants, Lakes Resevoirs |
Thayer's GullLarus thayeri |
Open Ocean, Inshore Waters, Beaches, Urban Landscapes, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Western GullLarus occidentalis |
Estuaries and Bays, Inshore Waters, Coastal Cliffs, Beaches, Urban Landscapes, Ponds and Rivers |
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Fresh Water |
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Arctic TernSterna paradisaea |
Open Ocean, Inshore Waters, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers, Open Country and Grasslands |
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Black TernChlidonias niger |
Open Ocean, Estuaries and Bays, Tidal Mudflats and Shallows, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers |
Black-headed GullChroicocephalus ridibundus |
Estuaries and Bays, Inshore Waters, Beaches, Tidal Mudflats and Shallows, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
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Black-legged KittiwakeRissa tridactyla |
Open Ocean, Inshore Waters, Coastal Cliffs, Dams, Lakes Resevoirs |
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Bonaparte's GullChroicocephalus philadelphia |
Estuaries and Bays, Inshore Waters, Saltmarshes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers, Boreal Forest |
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California GullLarus californicus |
Open Ocean, Estuaries and Bays, Inshore Waters, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers |
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Caspian TernHydroprogne caspia |
Estuaries and Bays, Inshore Waters, Beaches, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers |
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Common TernSterna hirundo |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Beaches, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs |
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Forster's TernSterna forsteri |
Beaches, Tidal Mudflats and Shallows, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs |
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Franklin's GullLeucophaeus pipixcan |
Estuaries and Bays, Tidal Mudflats and Shallows, Saltmarshes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
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Glaucous GullLarus hyperboreus |
Open Ocean, Estuaries and Bays, Inshore Waters, Coastal Cliffs, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
Glaucous-winged GullLarus glaucescens |
Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Beaches, Tidal Mudflats and Shallows, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Lakes Resevoirs |
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Great Black-backed GullLarus marinus |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Beaches, Coastal Dunes, Saltmarshes, Urban Landscapes, Suburban/residential Landscapes, Dams, Lakes Resevoirs |
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Gull-billed TernGelochelidon nilotica |
Estuaries and Bays, Beaches, Tidal Mudflats and Shallows, Saltmarshes, Urban Landscapes, Fresh Water Marshes |
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Herring GullLarus argentatus |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Iceland GullLarus glaucoides |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Coastal Cliffs, Beaches, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Kelp GullLarus dominicanus |
Estuaries and Bays, Inshore Waters, Beaches, Lakes Resevoirs |
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Large-billed TernPhaetusa simplex |
Lakes Resevoirs, Ponds and Rivers |
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Laughing GullLeucophaeus atricilla |
Open Ocean, Estuaries and Bays, Inshore Waters, Rocky Shores, Beaches, Saltmarshes, Fresh Water Marshes, Lakes Resevoirs |
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Least TernSternula antillarum |
Estuaries and Bays, Beaches, Fresh Water Marshes, Ponds and Rivers |
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Lesser Black-backed GullLarus fuscus |
Estuaries and Bays, Inshore Waters, Beaches, Urban Landscapes, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Little GullHydrocoloeus minutus |
Open Ocean, Inshore Waters, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs |
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Mew GullLarus canus |
Estuaries and Bays, Tidal Mudflats and Shallows, Urban Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs |
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Ring-billed GullLarus delawarensis |
Estuaries and Bays, Inshore Waters, Beaches, Tidal Mudflats and Shallows, Saltmarshes, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs |
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Ross's GullRhodostethia rosea |
Estuaries and Bays, Inshore Waters, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Sabine's GullXema sabini |
Open Ocean, Estuaries and Bays, Inshore Waters, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs |
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Slaty-backed GullLarus schistisagus |
Inshore Waters, Beaches, Urban Landscapes, Sewage Treatment Plants, Lakes Resevoirs |
Thayer's GullLarus thayeri |
Open Ocean, Inshore Waters, Beaches, Urban Landscapes, Sewage Treatment Plants, Dams, Lakes Resevoirs |
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Western GullLarus occidentalis |
Estuaries and Bays, Inshore Waters, Coastal Cliffs, Beaches, Urban Landscapes, Ponds and Rivers |
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Whiskered TernChlidonias hybrida |
Fresh Water Marshes |
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White-winged TernChlidonias leucopterus |
Fresh Water Marshes |
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Grassland and Scrubland |
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Arctic TernSterna paradisaea |
Open Ocean, Inshore Waters, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers, Open Country and Grasslands |
Black-headed GullChroicocephalus ridibundus |
Estuaries and Bays, Inshore Waters, Beaches, Tidal Mudflats and Shallows, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
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Franklin's GullLeucophaeus pipixcan |
Estuaries and Bays, Tidal Mudflats and Shallows, Saltmarshes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
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Glaucous GullLarus hyperboreus |
Open Ocean, Estuaries and Bays, Inshore Waters, Coastal Cliffs, Beaches, Urban Landscapes, Suburban/residential Landscapes, Sewage Treatment Plants, Fresh Water Marshes, Lakes Resevoirs, Open Country and Grasslands |
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Forest and Woodlands |
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Bonaparte's GullChroicocephalus philadelphia |
Estuaries and Bays, Inshore Waters, Saltmarshes, Sewage Treatment Plants, Dams, Fresh Water Marshes, Lakes Resevoirs, Ponds and Rivers, Boreal Forest |