Aves | 
Charadriiformes | 
Laridae
			
			
			
				Environment: milieu / climate zone / Mức độ sâu / distribution range				
				
					Sinh thái học				
				
			
			
				;  Mức độ sâu 0 - 1 m (Tài liệu tham khảo 119695).  Temperate; 85°N -   31°N, 180°W -   180°E (Tài liệu tham khảo 120722)			
			
			
				
			
			
			
				Northern Pacific and Atlantic Ocean, Arctic and Pacific Asia.
			
			
			
			
			
				Length at first maturity / Bộ gần gũi / Weight / Age
			
			
				Chín muồi sinh dục: Lm ?  range ? - ? cm Max length : 77.0 cm TL con đực/không giới tính; (Tài liệu tham khảo 8812); Khối lượng cực đại được công bố: 1.4 kg (Tài liệu tham khảo 356)			
			
			
							
				
				
					
						Culmen: 6.26 cm; tarsus: 7.41 cm; wing: 45.9 cm.					
				
				
						
			
			
			
			
				
					Total Length:  66 to 77 cm; Wingspan:  132 to 142 cm (Ref. 8812). Minimum and maximum depth based on feeding behavior of dippers (0.3+-0.2). This is is also based on diving depth of one species of the genus Larus. Found on bay and nearshore, beach and shoreline (Ref. 116102).  Coastal; scavenger; kleptoparasitism; (Ref. 356). Prey on cliff-nesting colonial seabirds, usually within a limited area within the whole colony and on locations that are disadvantageous for the colonial birds to defend such as on broad ledges or sloping cliffs. Vulnerable to pollution because of their foraging, prey, or nesting habit near shore, close to industrial or agricultural pollutants (Ref. 87784).				
			
			
			
			
			
				Life cycle and mating behavior				
					Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | Larvae				
			
			
				
									
			
			
			
			
			
				Lepage, D. 2007 Avibase -the World Bird Database. http://www.bsc-eoc.org/avibase/avibase.jsp [accessed 09/07/2007]. (Tài liệu tham khảo 7816)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Tài liệu tham khảo 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Tài liệu tham khảo 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
				CMS (Tài liệu tham khảo 116361)
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
Các công cụ
			
			
			
			
				
					Thêm thông tin				
				
					 Population dynamicsSự sinh trưởng
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Sự phong phú
  Life cycleSự tái sinh sản
Chín muồi sinh dục
Sự sinh sản
Đẻ trứng
Eggs
Egg development
Larvae
  PhysiologyThành phần ô-xy
  Human RelatedStamps, coins, misc.
  				 
			 
			
			
			
				Các nguồn internet
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 0.4 - 13.3, mean 7.5 (based on 1860 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Moderate to high vulnerability (51 of 100).					
				
						
						
			
									
						Price category  					
					
					Unknown.