Larus occidentalis
		
		
		
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IOC Classification: Domain: Eukaryota • Regnum: Animalia • Phylum: Chordata • Subphylum: Vertebrata • Infraphylum: Gnathostomata • Cladus: Osteichthyes • Superclassis: Tetrapoda • Cladus: Amniota • Cladus: Reptilia • Cladus: Archosauria • Classis: Aves • Superordo: Neognathae • Ordo: Charadriiformes • Familia: Laridae • Genus: Larus • Species: Larus occidentalis   Audubon, 1839

Wikispecies has an entry on:
- English: Western Gull
- Ænglisc: Westmǣw
- العربية: نورس غربي
- مصرى: نورس غربى
- български: Западна чайка
- català: gavià occidental
- čeština: racek západní
- Cymraeg: gwylan y Gorllewin
- dansk: Amerikansk Svartbag
- Deutsch: Westmöwe
- Schweizer Hochdeutsch: Westmöwe
- Canadian English: Western Gull
- British English: Western Gull
- Esperanto: Okcidenta mevo
- español: Gaviota occidental, Pato occidental
- eesti: kiltkajakas
- فارسی: کاکایی غربی
- suomi: amerikanmerilokki
- français: Goéland d'Audubon, Goéland d’Audubon
- עברית: שחף מערבי
- hrvatski: obalni galeb
- magyar: nyugati sirály
- Igbo: Western Gull
- italiano: Gabbiano occidentale
- 日本語: アメリカオオセグロカモメ
- lietuvių: vakarinis kiras
- latviešu: rietumu kaija
- македонски: западен галеб
- norsk bokmål: Kaliforniasvartbak
- Nederlands: Californische Meeuw
- Diné bizaad: Eʼeʼaahdę́ę́ʼ tónteel tsídii
- polski: mewa zachodnia
- português: gaivota-de-pés-rosados, gaivota-ocidental
- русский: Западная чайка
- slovenčina: čajka pláštiková
- svenska: västtrut
- українська: мартин західний, Західний мартин
- Tiếng Việt: Mòng biển phương tây
- 中文: 西美鸥
- 中文(简体): 西美鸥
- 中文(繁體): 西美鷗
- 中文(香港): 西美鷗
- IUCN:  Larus occidentalis Audubon, 1839  (old web site) (Least Concern) Larus occidentalis Audubon, 1839  (old web site) (Least Concern)
Different views of sitting adult birds
[edit]
- 
			
			injured foot
- 
			
			front
Head
[edit]
- 
			
			eating starfish
- 
			
			juvenile
In flight
[edit]
- 
			
			juvenile
- 
			
			Juvenile
Behavior
[edit]- 
			
			attacking an American Coot
- 
			
			fighting for mates
Young birds
[edit]Sorted by age
- 
			
			newly hatched
- 
			
			1. day
- 
			
			3 weeks old
- 
			
			3 weeks old
- 
			
			about 3 weeks old
- 
			
			about 3 weeks old
- 
			
			4 weeks old
- 
			
			1st winter
- 
			
			2nd year
- 
			
			faded 1st summer plumage
- 
			
			Subadult (2nd-3rd year), with injured foot
- 
			
			Subadult (2nd-3rd year)

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