An ostrich is unable to fly. It's wings can not support the weight of the body. It is the fastest land bird that exists, and can run up to 45 mph.

No an ostrich cannot fly. These birds also do not bury their heads in the sand. Running up to 45 miles per hour, ostriches are the fastest 2 legged animal. You can find more information here: http://www.ostrich.com/general/quickfact...