Ziz

In Jewish belief, Behemoth is the primal unconquerable monster of the land, as Leviathan is the primal monster of the waters of the sea and Ziz the primordial monster of the sky.

The Ziz is a giant griffin-like bird in Jewish mythology, said to be large enough to be able to block out the sun with its wingspan. It is considered a giant animal/monster corresponding to archetypal creatures. Rabbis have said that the Ziz is comparable to the Persian Simurgh. Behemoth, Leviathan and Ziz were traditionally a favorite decoration motif for rabbis living in Russia.

http://en.wikipedia.org/wiki/Ziz