https://www.3dtotal.com/ffa/tutorials...orial/bird.asp modeling
https://www.highend3d.com/maya/downlo...stem-4832.html feather system
IIRC, I believe there is an extra on the God of War 2 video game that shows the making of Pegasus' wings.
"Terminat Bora Diem, Terminal Auctor opus."