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Re: Gastornis bone isotopes indicate herbivorous diet

On Mon, Feb 24th, 2014 at 11:56 AM, Hammer <hammeris1@att.net> wrote:

> That's news to me - is this known basically everywhere, or is it related to a 
> specific
> continent?  Interesting.

Cows usually only resort to eating animals when they're suffering serious 
mineral deficiencies.


It's thought that deer eat birds (or even rabbits) when they need extra 
minerals to regrow antlers. 
Deer on some isolated mineral-poor islands will eat bird eggs or young chicks 
on a regular basis.



Dann Pigdon
Spatial Data Analyst               Australian Dinosaurs
Melbourne, Australia               http://home.alphalink.com.au/~dannj