I read it the same way that HeChicken did. I thought they were all older birds. In this weather I would leave the Month old ones out unless the teemperatures dropped down at night. The two week olds I would keep in until they get feathers. Most of my birds stay in the brooder a lot longer than most people brood chicks but that is just because I have to have a place to put them first.
Well the hoop coop is done!!! I have barred rocks in one side and just got the second side completed. I have so many birds I need to separate it's hard to make decisions. I forgot to mention. I killed two snakes here yesterday. It was easier this time. I got them pinned- one with a shovel and one with a paver and called for DH. He managed to put a bullet in both their heads and made quick work of it. (He doesn't like doing it.)
And yes Rooster I was wearing flip flops again!