Eumo or not?

[Olympic_Aiairies]

my hubby is building a large flight cage for them now so I figured I'd try him in it first to see if he has any issues flying and I'll check his wings. I've never owned this type before and there isn't much info out on them. I think he may be a Eumo as one of his chicks that just fledged is really dark. I've never seen this color before and it's missed any trace of white on his tail.