Hippalektryon

A mythical creature with the head, shoulders, and forelegs of a horse and the wings, tail, and legs of a cockerel.
“hippalektryon, n.” OED Online, Oxford University Press, June 2018, www.oed.com/view/Entry/64727319. Accessed 14 August 2018.

I’m good with human faces. Horses have very different structure.