I'm not sure if you can see in the pictures or video (maybe the first picture), but both of the joints right above the foot look a bit swollen and red compared to the other Cornish roasters. I am worried it will get dehydrated since the waterers I have in there have vertical nipples and they pretty much have to stand up to drink. I'm not sure he could drink from a bowl of water (I tried taking a dish of water in the tractor the other day to try to refocus their attention while I filled up the bucket waterer and they didn't know what to do with it... They just waited for the bucket waterer to be filled up and then attacked it (I even showed it to them and dipped a few beaks in, but no dice, lol).
I did move him over to the layer brooder so there aren't any monster Cornish cross in there to trample him. He didn't seem to like being away from the chicks whenever I pull him out in the grass to check on him and feed him electrolyte water via dropper. I feel like he needs a sling or something to hold him up and take the pressure off of those joints... But no three week old chicken is going to stay in a sling!