My 4 month old rooster (at least we think he is a rooster) is having leg issues. I noticed yesterday that his hock joints seems to be popping out of place.. both legs at the joint pop outward when he tries to walk and take a step. I researched leg issues and found that maybe there is a calcium deficiency. Our chickens free range so they don't typically eat much of their feed unless its something special i bring them. I have began supplementing their food yesterday and today with leafy greens, yogurt, and raw fresh organic goats milk mixed in the feed. I have ordered food grade bone meal that should arrive tomorrow. I am having trouble finding what this could be and how to help him. He is the sweetest chicken and loves attention. Hes the first to run to you when we come out side and call them. Today his legs seem worse. He is laying more and he stumbles when he walks, when his joints give way he tries to catch himself and one foot goes in front of the other.. can i help him?