| Stercorariidae () | 
	
		
	
	| 78 cm TL (male/unsexed); max.weight: 694.0 g | 
| others; marine | 
	
	
	
		| Pacific, Atlantic, Indian and Arctic Oceans.  Tropical to polar. | 
	
		
	| Culmen: 6.35 cm; tarsus: 5.29 cm; wing: 35.56 cm. | 
	
	
		| Total Length:  65 to 78 cm; Wingspan:  17 to 20 cm (Ref. 8812).  Length: 56 cm; Wingspan: 124 cm in Ref. 91362. Found in the high Arctic,  with a close affinity with ice (Ref. 356).  Nests in tundras; usual clutch size, 2 eggs (Ref. 97149).  A coastal kleptoparasite.  Exhibits dipping and plunging behavior (Ref. 356).  Known to prey on Brown Lemming (Ref. 97149). | 
	
	
    | (LC); Date assessed: 07 August 2018 Ref. 123251) | 
  
  
 		
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