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Larus californicus

(Californian Gull)

Overview

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This versatile bird is capable of feeding on foot , on the wing, while swimming, or by diving. Large species of gulls are important hunters of the treeless Arctic plains , feeding on small mammals and birds, chicks, and eggs .

Common Names

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Click on the language to view common names.

Common Names in Czech:

Racek Mormonský

Common Names in Danish:

Canadisk Måge

Common Names in Dutch:

Californische Meeuw

Common Names in English:

California Gull, Californian Gull

Common Names in Estonian:

Järvekajakas

Common Names in Finnish:

Preerialokki

Common Names in French:

Goèland De Californie, Goéland De Californie, Goéland De Californie

Common Names in German:

Indianermöwe, Kaliforniermöwe, Kaliforniermöwe

Common Names in Italian:

Gabbiano Della California

Common Names in Japanese:

カリフォルニアカモメ, Kariforuniakamome

Common Names in Latin:

Larus californicus

Common Names in Norwegian:

Præriegråmåke

Common Names in Polish:

Mewa Kalifornijska

Common Names in Slovak:

Cajka Plavokrídla

Common Names in Spanish:

Gaviota Californiana

Common Names in Spanish (Mexico):

Gaviota Californiana

Common Names in Swedish:

Prärietrut

Description

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Physical Description

Adult : Head : white Bill: yellow with red and yellow spot on lower mandible Lower Mandible: red and black spot Neck: white Body: Breast: white Underparts: white Legs : Foot Color: greenish-yellow to gray-green Leg Color: greenish-yellow to gray-green Tail: white.

Color:

Adult alternate: Bright yellow bill with complete black ring distal to red spot at gonys · Bright yellow legs · Brown eye · White head , neck, breast, and belly · Gray back and upperwings · White tertial crescent · Black primaries with white tips and two white mirrors on outer primaries

Adult basic: Like adult alternate but blurry brown streaking and spotting on head and nape

Juvenile/First-year: Black bill quickly developing pale pink base · Wholly brown body plumage · Dark brown primaries · Dark brown secondaries and greater secondary coverts appears as double dark bar on trailing edge of wing in flight · Black legs quickly become pink · Dark outer primaries · Dark tail · Pale rump marked with bark bars and appears dark

Second-year: Green-yellow bill with black tip · Pale head, neck, upper breast, and belly with brown streaking · Dull brown upperwing coverts · Dark brown primaries and tail · Gray back · White tail with dark terminal band

Third-year: Like adult basic, but often lacks adult bill pattern , wing pattern, and often retains a partial tail band

Size/Age/Growth

About 21 to 22 inches long, with a wingspan of 48 to 54 inches. Adults weigh about 22.4 ounces .

Habitat

Vegetation: freshwater marshes, coastal waters, coastal sand beaches and mudflats, arid lowland scrubs, pastures and agricultural lands, freshwater lakes and ponds • Maximum Elevation: 1,600 meters • Sensitivity to Disturbancet: Low

Biology

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Diet

Mostly: Insects Aquatic Invertebrates Fish Carrion

Reproduction

Migration

Migratory

Taxonomy

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Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 17-Oct-2001.

Similar Species

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Ring-Billed Gull, Herring Gull

Members of the genus Larus

There are approximately 173 species in this genus. Here are just 100 of them:

L. alba · L. argentatus (Herring Gull) · L. argentatus antelius · L. argentatus argentatus (Herring Gull) · L. argentatus argenteus · L. argentatus atlantis · L. argentatus birulae · L. argentatus cachinnans · L. argentatus drosti · L. argentatus heuglini · L. argentatus michahellis · L. argentatus mongolicus · L. argentatus omissus · L. argentatus smithsonianus · L. argentatus thayeri · L. argentatus vegae · L. armenicus (Armenian Gull) · L. atlanticus (OlrogÃŒs Gull) · L. atricilla (Laughing Gull) · L. atricilla atricilla (Laughing Gull) · L. atricilla megalopterus · L. audouini · L. audouinii (AudouinÃŒs Gull) · L. azarae · L. belcheri (Band-Tailed Gull) · L. belcheri atlanticus · L. belcheri belcheri (Band-Tailed Gull) · L. borealis · L. brachyrhynchus (Mew Gull) · L. brevirostris (Red-Legged Kittiwake) · L. bridgesii · L. brunneicephalus · L. brunnicephalus (Indian Black-Headed Gull) · L. bulleri (Black-Billed Gull) · L. cachin · L. cachinans · L. cachinnans (Yellow-Legged Gull) · L. cachinnans atlantis · L. cachinnans barabensis · L. cachinnans cachinnans · L. cachinnans michahellis · L. cachinnans mongolicus · L. californicus (Californian Gull) · L. californicus albertaensis (Light-Mantled California Gull) · L. californicus californicus (Dark-Mantled California Gull) · L. canus (Common Kamchatka Gull) · L. canus brachyrhynchus (Mew Gull) · L. canus canus (Common Kamchatka Gull) · L. canus heinei (Mew Gull) · L. canus kamtschatschensis (Eastern Common Gull) · L. canus stegmanni · L. capensis · L. capistratus · L. cirrhocephalus · L. cirrocephalus (Grey-Headed Gull) · L. cirrocephalus cirrocephalus (Gray-Hooded Gull) · L. cirrocephalus poicephalus · L. cirrocephalus poiocephalus · L. crassirostris (Black-Tailed Gull) · L. delawarensis (Ring-Billed Gull) · L. delewarensis · L. dominicanus (Southern Black-Backed Gull) · L. dominicanus austrinus · L. dominicanus dominicanus (Southern Black-Backed Gull) · L. dominicanus judithae · L. dominicanus melisandae · L. dominicanus vetula · L. eburnea (Ivory Gull) · L. eburneus · L. elegans · L. fuliginosus (Dusky Gull) · L. furcatus (Swallow-Tailed Gull) · L. fuscus (Lesser Black-Backed Gull) · L. fuscus fuscus (Lesser Black-Backed Gull) · L. fuscus graellsi · L. fuscus graellsii (Lesser Black-Backed Gull) · L. fuscus heuglini · L. fuscus intermedius · L. gelastes · L. genei (Slender-Billed Gull) · L. glaucescens (Glaucous-Winged Gull) · L. glaucescens occidentalis · L. glaucescens x · L. glaucoides (White-Winged Gull) · L. glaucoides glaucoides (White-Winged Gull) · L. glaucoides kumlieni (Kumlien's Gull) · L. glaucoides thayeri (Iceland Gull) · L. glaucus · L. graellsii · L. haematorhynchus · L. hartlaubi · L. hartlaubii (King Gull) · L. heermanni (White-Headed Gull) · L. heermannii · L. hemprichi · L. hemprichii (Sooty Gull) · L. hermanni · L. heuglini · L. heuglini heuglini · L. hybrid

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal March 04, 2008:

Identifiers

Last Revised: 2009-06-19