I have
not looked at the photos (not needed) but about your question. Not really
commonly seen, then again it is easy to miss. Usually happens for small prey
like insects. I have seen it often enough to believe it is a regular
method for Kestrels, Brown Falcons, Black Falcons, Hobbies,
Black-shouldered Kites, Black Kites (and no doubt other raptors do so
too). When I have seen this feeding like this it is on swarms of high
flying insects (in that case it would be a waste of energy to return to a perch
for each one. (Also bits of carrion for the Black Kites and for the BsK a
mouse). There is film of larger raptors feeding on bats in flight.
Philip
Over the last 2 years I have seen many Australian Kestrels, One
yesterday drew my attention I have Never seen one eat whilst in the air, is this
common he did it three times, down up and eat, I normally see them
go to a log, line etc
Not the best to far away but you can make it out
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