An all white Snowy is a mature male owl.
Interesting! I had no idea. He was preening himself in the sun. I got a few pictures, but they're kind of blurry.
I would love to have gotten a picture of the spectacled owl because the colors are so striking, like you said.
The Uhu (eagle owl) had pretty orange eyes. I was hoping to see its wingspan to see how it compares to a Great Horned Owl.
Interesting, thanks for the pics! I'd never seen the babies or young birds before. They're like the white horses, then, that are born dark and get lighter with age. Some of the Lipizzaners stay dark brown their whole life, though. They're rare and considered to be lucky.