Wire may be a little easier to clean, although I'd do wood. More predator proof, and you can lay down shavings or some sort of substrate, plus any spilled food will end up inside for you to scrape out with the poop as opposed to spilled on the ground (to attract mice and such!)
The medium looking fans are a result from a fantail x non-fan! Chances are Squabble is just homer or feral, aka rock dove or pigeon : D that's cool you have feral fantails, nothing fancy is feral where I live
I find it on most of my squabs, moreso my rollers than my homers though! They fall out when they're adults though. I had *one* squab keep a few feathers but they were small!
Brahma mix is possible, adult shape will probably help with that (I know I know a long wait!) Color wise looks to be blue based, probably blue laced red/gold or something along those lines! Again, can be a little more certain when they're done getting their feathers in :D
My guess-
1. EE/Ameraucana/Isbar/CCL*
2. Welsummer (small chance possibly Marans)
3. EE/Ameraucana/Isbar/CCL*
4. EE/Ameraucana/Isbar/CCL*
5. EE is possible but more likely Wyandotte or Orpington
6. EE/Ameraucana/Isbar/CCL*
*These look blueish greenish in the light, do they look blueish...
Oh! and that egg you're holding in the second photo looks exactly like my Welsummers eggs, chances it could be a Marans but the speckles makes me think thats a Welsummer ;D
I don't think anything wrong, if you're hoping to do it yourself though you may have to buy pigeon food (you can probably find it for $20 a bag or so at a feedstore, I know WilCo has it and I imagine TSC might?) You'll probably need to make some sort of temporary cage cause the wing will...
Hows he doing now? Do you perhaps have any bird rescues around? That would be my first step. I'm gonna assume theres no leg band and that it's probably a feral pigeon?
The wing doesn't look like it's sitting normally, it looks like the feathers are in the wrong position while wrapped up, try...
What age did you butcher them for pelts? :0 I'm really interested in rex but I've heard most don't butcher at 10 weeks for pelt, but never quite say when they *do* haha