RE: gurgitation

[Keith Brandwood <>]

Pat OMalley wrote:
> The mention of Papuan Frogmouth regurgitating raises a question about
> which birds do routinely use this as a means of sorting the chaff from
> the grain, so to speak. 
>
> Obviously owls cough up pellets, and when in Japan I notice several
> Japanese Crows coughing up the carapaces of cicadas they had eaten. 
>
> Is it only predatory species that do this, and is it all predatory
> birds? Are there also species that routinely puke up indigestible
> vegetable matter?
>
> Cheers
>
> Pat
> ============================www.birding-aus.org
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Ive seen Currawongs and Mangrove Kingfisher regurgitate.
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