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Re: Troodon again
Ronald Orenstein wrote:
> At 09:43 PM 9/22/1997 -0400, you wrote:
> >On Tue, 23 Sep 1997, Dann Pigdon wrote:
> >> Tool use is not necessarily signs of high intelligence. There
> >> are many birds that use tools. I recently saw footage of a
> >> wedge-tailed eagle using a stone to crack open an emu egg, and as
> >Could you tell us how the eagle did this? Thrown, like an Egyptian vulture
> >at an ostrich egg; dropped from a great height, or held in the beak and
> >hammered. Was it a rockish stone, or merely a pebblish stone?
> More to the point, perhaps - are you sure it was a Wedge-tailed Eagle?
> Another Australian raptor, the Black-breasted Buzzard, is well known for
> dropping rocks from the air on Emu eggs.
> Ronald I. Orenstein Phone: (905) 820-7886
> International Wildlife Coalition Fax/Modem: (905) 569-0116
> 1825 Shady Creek Court
> Mississauga, Ontario, Canada L5L 3W2 mailto:email@example.com
Absolutely. There is nothing else that can dwarf an emu
egg like that, and the head is quite distinctive. I have also
seen Bustards (are they the same things as buzzards?) use rocks,
both dropping them and using them as hammers. I doubt any other
species of raptor could have lifted, let alone hammered repeatedly,
a fair sized rock such as the one held in the bird's beak.