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Re: Carcass detection Re: Ceratonykus braincase described

In some areas Black Vultures (Coragyps) use Cathartes vultures as clues to the 
location of food and follow them to food sources. 

Ronald Orenstein 
1825 Shady Creek Court
Mississauga, ON
Canada L5L 3W2

On 2011-04-30, at 12:09 AM, Augusto Haro <augustoharo@gmail.com> wrote:

> Yes, it seems that New World vultures which are more vision-based
> (Coragyps), typically operate on open areas, whereas vultures which
> are more smell-based (Cathartes), operate in more covered forests. I
> think that, although vision may likely help a ground-based scavenger,
> overall by following vultures, at ground-level the vegetal coverage,
> or just irregularity of terrain (with slight bumps and cavities), may
> pose a great problem for a scavenger. I think vision is predominant in
> soaring vultures, which have a greater radius of coverage because of
> their elevated position, but for ground-based animals this radius is
> much smaller.