|Remarks :||On a pelagic survey conducted by the Cochin Natural History Society.
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
Karuthedathu, D., (2014) Long-tailed Jaeger Stercorarius longicaudus from the western coast of India: Identification in retrospect. Indian BIRDS 9(3): 69–72.