The use of tools is rare in birds and apart from the use of a pebble as a hammer, Egyptian Vultures also use twigs to roll up wool for use in their nest.
In Ancient Egypt, the vulture hieroglyph was the uniliteral sign. The Bible makes a reference to the Egyptian Vulture under the Hebrew name of rachamah/racham. The bird was held sacred to Isis in the ancient Egyptian religion. The use of the vulture as a symbol of royalty in Egyptian culture and their protection by Pharaonic law made the species common on the streets of Egypt and gave rise to the name "Pharaoh's Chicken"