This article about the foraging behaviour of the Tyrant Flycatchers of
the New World distinguishes aerial hawking from aerial foraging
(bottom of page 2) and prefers the term 'screening' for the latter.
The author is following an earlier article by Emlen, which I can't
find online.
I can't see where this meaning for 'screening' comes from, and the
verb has lots of other meanings which are not connected to this
meaning, so it seems a poor choice.
John Leonard
2008/11/16 Colin Scouler <>:
> Hello all,
>
> Referring to the foraging techniques of Welcome Swallows, HANZAB says:
> "Forage aerially, taking prey by sallying or screening..."
>
> I can't find the term "screening" in the glossary, and none of the
> dictionary definitions seem to fit.
>
> Can someone explain what "screening" means in this context?
>
> Thanks,
> Colin Scouler
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--
John Leonard
Canberra
Australia
www.jleonard.net
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