Frazzemrat1
Free Ranging
I see the first two and last pics as Easter Eggers, not ameraucana. Especially if you got them from a feed store. The reds are probably red cochins; they have a single comb? The blacks you speak of are Black Jersey Giants if their foot bottoms are yellow. If they're a pinkish gray then they're misidentified and are Austrolorps.
ETA: All are pullets, no cockerels at all.
ETA again: I'd put up some more wire besides that chain link. There are many predators that will go right through it, besides pests like rats and mice. I also have a chain link run around my coop, and while hardware cloth is recommended (nothing will get through it) I put up chicken wire over my chain link. I put up with the fact that I'm feeding mice and chipmunks with my chickens. At least during the day. At night I put all the feed up in a metal trash bin.
ETA: All are pullets, no cockerels at all.
ETA again: I'd put up some more wire besides that chain link. There are many predators that will go right through it, besides pests like rats and mice. I also have a chain link run around my coop, and while hardware cloth is recommended (nothing will get through it) I put up chicken wire over my chain link. I put up with the fact that I'm feeding mice and chipmunks with my chickens. At least during the day. At night I put all the feed up in a metal trash bin.