Wikipedia
Oksoko
Oksoko (Turkish: Öksökö), also known as Zuzulo (Turkish: Züzülö), is a double-headed eagle in Turkish mythology related to Burkut the eagle God.
The Oksoko bird brings down lightning from the Heavens to Earth with rain which in return creates human bodies and humans themselves. This lightning carries Oz (Turkish: Öz). Oz is the human soul. This energy carrying the will of Tengri with a purpose and desire. In fact Oksoko consists of two birds, Toghrul and Kongrul (Tuğrul and Konrul), and sometimes Semruk and Merkut, and it is their combined form. Oksoko symbolizes luck and happiness similar to the Huma bird.
In Turkey, the symbol is being used in various areas like the police, schools, vehicles, football clubs and municipalities.