Aves | 
Charadriiformes | 
Laridae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Others.  Temperate			
			
			
				
			
			
			
				Eastern Pacific, Western Atlantic and the Arctic.  Polar to tropical.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 58.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 607.00 g (Ref. 356)			
			
			
							
				
				
					
						Culmen: 5.0 cm; wing: 39.9 cm.					
				
				
						
			
			
			
			
				
					Total Length:  51 to 58 cm; Wingspan:  122 to 140 cm (Ref. 8812). Coastal; <60 km (Ref. 356). Nest of simple construction.  Despite risk of thermal stress on embryos and very young chicks, nests near shores of islands to be able to more easily detect predators, provides hiding places for small chicks, and ready escape routes for larger members.  Stomach contents of Mono Lake population found with osmolalities of ca. 635 mosmo/kg, like their brine shrimp prey and just 25% as concentrated as the lake water, may be attributed to minimal intake of hypersaline waters; although unnecessary in maintenance of osmotic balance, observed to habitually visit freshwater sources along lake shore (Ref. 87784).  Exhibits dipping and paddling (Ref. 356).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
									
			
			
			
			
			
				SAUP Database 2006 SAUP Database. www.seaaroundus.org. (Ref. 356)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Ref. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Ref. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
Tools
			
			
			
			
				
					More information				
				
					 Life cycleReproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
  PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				Internet sources
			
			
			
			
			
				Estimates based on models
			
			
			
									
						Preferred temperature  					
				 (Ref. 
115969): 6.1 - 25, mean 9.7 (based on 479 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Moderate vulnerability (43 of 100).					
				
						
						
			
									
						Price category  					
					
					Unknown.