Aves | 
Gaviiformes | 
Gaviidae
			
			
			
				Environment: milieu / climate zone / गहराई सीमा / distribution range				
				
					पारिस्थितिकी				
				
			
			
				.  Subtropical; 78°N -   33°N, 3°E -   80°W (संदर्भ 124582)			
			
			
				
			
			
			
				Northern and Central Pacific, Atlantic and the Arctic.  Polar to subtropical.
			
			
			
			
			
				Length at first maturity / आकार / Weight / Age
			
			
				परिपक्व अवधि: Lm ?  range ? - ? cm			
			
			
						
			
			
			
			
				
					Found on beach and shoreline (Ref. 116102).  Inhabits lakes and lakeshores.  Feeds primarily on fish and minimally on plant material. Breeding pairs highly territorial, employing specific vocalizations and aggressive displays and postures when sensing threat.  Copulation takes place on land.  The male selects the nest site; egg clutch incubation approx. 27 days with both parents taking turns.  Typical brood number, 2; with both parents feeding the young; commonly, only one of the 2 survives probably due to competition for food within the brood (Ref. 95186).				
			
			
			
			
			
				Life cycle and mating behavior				
					परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | Eggs | Fecundity | Larvae				
			
			
				
									
			
			
			
			
			
				Lepage, D. 2007 Avibase -the World Bird Database. http://www.bsc-eoc.org/avibase/avibase.jsp [accessed 09/07/2007]. (संदर्भ 7816)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (संदर्भ 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (संदर्भ 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
				CMS (संदर्भ 116361)
			
			
			
			
			
			
				Threat to humans  
			
			
				
					  Harmless				
			
			
			
			
			
			
			
			
				Human uses  
			
			
							
			
			
				 | FishSource | 			
			
			
			
			
			
साधन
			
			
			
			
				
					अधिक जानकारी				
				
					 Population dynamicsबाढ़
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
बहुतायत
  Life cycleपुनरुत्पत्ति
परिपक्व अवधि
Fecundity
मछलीऔ का अंडे देना
Eggs
Egg development
Larvae
  PhysiologyOxygen consumption
  Human RelatedStamps, coins, misc.
  
			 
			
			
			
				इंटरनेट स्रोत
			
			
			
			
			
				Estimates based on models