French: Mouette tridactyle German: Dreizehenmöwe Spanish: Gaviota tridáctila
Subspecies and Distribution
R. t. tridactyla
(Linnaeus, 1758) – Atlantic Kittiwake – N Atlantic from NC Canada and NE USA E through Greenland to W & N Europe, and on to N Taymyr Peninsula and Severnaya Zemlya; winters S to Sargasso Sea and W Africa.
R. t. pollicaris
Ridgway, 1884 – Pacific Kittiwake – N Pacific from NE Siberia, Kamchatka, Sea of Okhotsk and Kuril Is through Bering Sea to Alaska; winters S to East China Sea and NW Mexico.
38–41 cm; 305–512 g; wingspan 91–97 cm. Three-year gull. Breeding adult is a typical white-headed gull, but with short legs; mantle and upperwing-coverts... read more
Characteristically noisy at and around its breeding colonies. Common call (the long call) is the... read more
Arctic and temperate waters. Breeds on coasts as far N as open water occurs, preferring high, steep... read more
Food and feeding
Mainly marine invertebrates and fish. Outside breeding season also takes planktonic invertebrates, and has recently begun to exploit sewage... read more
Some colonies occupied as early as Jan, and regularly by Feb; lays from mid May to mid Jun, depending on latitude; later after cold springs... read more
Post-breeding dispersal from colonies to open ocean, usually well away from coast, and perhaps... read more
Status and conservation
VULNERABLE. Generally increased and expanded its range during 20th century but large-scale decline, first apparent in 1980s, has affected some Atlantic populations at least.... read more
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