How to flush a snowy owl ...

[Steve U]

The easiest way to find wildlife at Yellowstone is to look for the traffic jamb.

Heheh, good one.

[nvitalephotography]

Something like " No kids, they are vultures, they are looking for dead bunnies and other animals that did not make it in he cold, and they will eat them."

Have there ever been reports about people being injured by deer in Yellowstone or other popular places? I know it has happened in many places, but according to the pictures posted here they seem to be very tolerant

No, in reality deer and elk for that matter are rather tolerant. But a wild animal in breeding season is never a good thing to test. Male moose in rut for example will attack anything, they have been documented charging trains!