Oriental Bird Images
 

 
<<Previous       Next >> 
Long-tailed Jaeger or Parasitic Jaeger Stercorarius longicaudus or Stercorarius parasiticus  
Long-tailed Jaeger or Parasitic Jaeger
Photographer : © Jainy Kuriakose
Location :off the coast of Kochi, Kerala, India
Date : 4 November 2012
English synonyms:Longtailed Skua, Parasitic Jaeger, Arctic Jaeger, Buffon's Jaeger, Gull-Teaser, Whip-Tail
Bird Family :Stercorariidae - Skuas & Jaegers
Bird Group :CICONIIFORMES
Red Data Status :Least Concern
Remarks :On a pelagic survey conducted by the Cochin Natural History Society.

ID uncertain.

Characters favouring a Long-tailed Jaeger: Small round head with large eyes, and attenuated rear, typical of Long-tailed Jaegers. Legs look pale in a few images, which may favour a Long-tailed Jaeger, as other two species would have shown dark patches on, or fully dark, tarsi assuming this bird is an adult/near-adult (aged based on the darker underwing coverts).
Characters favouring a Parasitic Jaeger: Overall lack of contrast between the fresh coverts and primaries is a point against Long-tailed Jaeger. Being a possible adult/sub-adult, the amount of white at the base of primaries is much larger than that expected for a Long-tailed Jaeger (note that the primaries appear bleached). Also, the bird shows pale shafts to all five outer primaries.
The beak looks short and stout in some views, while it appears longer in some other views. - Dipu Karuthedathu

Ref:
Karuthedathu, D., (2014) Long-tailed Jaeger Stercorarius longicaudus from the western coast of India: Identification in retrospect. Indian BIRDS 9(3): 6972.