Horus is one of the most significant deities in the ancient Egyptian religion who was worshiped from at least 3100 BC through the Greek-Roman era. There are different forms of Horus that have been recorded in history and these are treated as distinct gods of Egypt. These forms may be the same multi-layered God in which certain attributes or relationships are expressed. He was most often depicted as a falcon, peregrine or as a man with a falcon head.
M. Youssef, and A. Agrawala. MobiSys '05: Proceedings of the 3rd international conference on Mobile systems, applications, and services, page 205--218. New York, NY, USA, ACM, (2005)