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Re: Bird Co-operation in hunting



On 20 Feb 97 10:19:00 EST, you wrote:

>Brian Franczak wrote:
>
>>No bird or crocodilian species alive today - the groups that
>>phylogenetically bracket dinosaurs -- hunts cooperatively. Only mammals do.
>>
>>
>>etc etc etc
>
>This is wrong. There is a species of hawk/buzzard which _does_ hunt
>co-operatively, and what's more, it is _adaptive_ behaviour (I need an
>ornithologist to give me a name, here; it lives in Central America area and is
>spreading north). The theory is that this bird has extended it's range to
>include scrubby desert by adopting co-operative hunting techniques; in it's
>"normal" habitat it is a solitary predator. I saw an absolutely extraordinary
>film of half a dozen of these hawks flushing a rabbit out of cover, chasing it
>through cactus thickets and finally capturing and sharing (albeit with a
>squabble) the meal.

Sounds like the Caracara (Mexican Eagle).



>So we _can_ include the possibility that dinos did the same.