The crested
treeswift (Hemiprocne coronata) is a kind of tree swift. The tree swifts are aerial near passerine birds, closely
related to, but distinct from the true
swifts. They are restricted to southeast Asia and Australasia. It was formerly considered conspecific with its
eastern relative, the grey-rumped treeswift (Hemiprocne longipennis), but they do not interbreed where their ranges overlap.
The crested treeswift is a
large slender bird at 23 cm (9 in) length. This species is dove grey
above and white below. The long swept-back wings are a darker grey above. This
treeswift has a crest and a long, deeply forked tail. The adult male has orange
sides to its face. Young birds have a dark grey head and wings, but the rest of
the soft plumage is much streakier than that of the adults.
The
call of this species is a harsh kee-kyew.
The crested treeswift
feeds in the air, living on the insects it catches in its bill. It looks more
like a swallow in flight than a swift, but is unrelated to
that group. Unlike the true swifts, the treeswifts readily rest on high bare
tree branches.
[info:wikipedia]
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