Long-tailed jaeger

Description

This species is unmistakable as an adult,with grey back,dark primary wing feathers without a white "flash",black cap and very long tail.Adults often hover over their breeding territories.Juveniles are much more problematic,and are difficult to separate from parasitic jaeger over the sea.They are slimmer,longer-winged and more tern-like than that species,but show the same wide range of plumage variation.