persian mythology creatures 1

hi every one

this is one of my illustrations with theme of persian mythology.
my friend milad behroozi help me with the studies and gathering the info{www.m-behroozi.deviantart.com}
so, thanks buddy
unfortunatly i didn`t find the english discription of this creature on english wikipia.

this bird called (kamak)it was responsible and lands ruins and dryness of earth.it was so big that covered all the sky and didn`t let the rain to come to the earth any hoe it was killed by (Gershasp)after 9 days.