My 3 year old dropped one of my day old chicks into its cage on Wed (the day we picked them up). That evening he stopped walking around like the others and now he barley moves. I checked both his legs, they work, his wings come out and flap around, but when hes on the floor he cant stand up. He is chirping a lot more then his buddies and the just walk on him like hes not there. What should I do? Is he suffering? Should I have him euthanized to stop his suffering?