Aves | 
Charadriiformes | 
Laridae
			
			
			
				Environment: milieu / climate zone / depth range / distribution range				
				
					Ecology				
				
			
			
				Others.  Subtropical			
			
			
				
			
			
			
				Southeast Pacific and Southwest Atlantic:  Chile, Argentina, and Falkland Islands.  Subtropical and Temperate.
			
			
			
			
			
				Length at first maturity / Size / Weight / Age
			
			
				Maturity: Lm ?  range ? - ? cm Max length : 46.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 520.00 g (Ref. 356)			
			
			
							
				
				
					
						Wing: 32.25 cm.					
				
				
						
			
			
			
			
				
					Total Length:  43 to 46 cm; Wingspan:  104 cm (Ref. 8812). Dipping; surface plunging; coastal (Ref. 356).				
			
			
			
			
			
				Life cycle and mating behavior				
					Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae				
			
			
				
									
			
			
			
			
			
				Schlatter, R.P. and A. Simeone 1999 Estado del conocimiento y conservacion de las aves en mares chilenos. Estudios Oceanologicos 18:25-33. (Ref. 5962)
			
			
			
			
			
			
			
					
						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				
				
					 Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
  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): 7 - 14.2, mean 10 (based on 315 cells).			
 
			
			
			
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Moderate vulnerability (36 of 100).					
				
						
						
			
									
						Price category  					
					
					Unknown.