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Convergent evolution????
Hi Andrew,
Yes but I'd suggest the odd thing is not
particularly the "hawking insects" but that they take on very much the flight
shape and style of woodswallows for a few seconds. It probably has little or
nothing to do with woodswallows (which otherwise fly quite differently), so it
is not likely to be behavioural mimicry, more like a coincidence. Hard to
describe how, but they just don't move like starlings usually do, when
indulging this behaviour. It is easy to think for a moment, such birds seen
not close up, are woodswallows.
Philip
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