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Re: storing a food source

On Thu, Sep 17, 2009 at 01:59:49PM -0300, Augusto Haro scripsit:
> 2009/9/17 David Krentz <ddkrentz@charter.net>:
> > This thread took an interesting turn, but one that is probably more factual
> > than the kind of info I was originally looking for.  I guess what I was
> > after, besides fat stores, was 'hoarding' behavior, you know, like a
> > squirrel storing nuts for the winter etc.
> Well, as far as I know you have laniids, which are predatory
> passeriforms, which impale their insect/small tetrapod (including
> frogs, mice, and smaller passeriforms) prey on spines/broken branches
> in trees. I do not know if they can survive winters with this, nor if
> other birds store for long time. If you meant reptiles in its
> paraphyletic sense, then I do not know...

Food caching is common in extant passerines; grey jays, acorn woodpeckers,
and the whole chickadee/tit clade are good examples.

I don't know of any non-passerine examples, though, and would suggest
that while the nominal bracket (since crocs are known to cache food
under water) supports this as a general archosaur behaviour, it's not
really one behaviour and should be treated with great caution in fossil

-- Graydon