Tue, 04 Mar 2003 13:57:07 +1000
My 2 bobs worth on these difficult species.
I have seen them in West and East Africa, called Little Swift there, and
the white on the throat is prominent, around buildings bins not even
required. I watched them in Bangladesh, House Swift there, and it took 3
weeks to pick out the white on the throat/chin even though they were
skimming passed at head height and 20 m away. The white rump was always
They always tend to be seen around towns, nesting under eves, obviously
as they are House Swifts, so I do not know how nomadic they are.
I do not know if the white on the chin varies with breeding but an old
Philippine field guide describes the chin as grey, but there are a lot
of errors in this guide. It stated that as you went through the
Philippine from N to S the greyer they got.
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