Tonight, I opened my chicken house door and found my rooster hanging upside down. I thought that he might be dead & thankfully when I grabbed his foot it was still warm. I am not sure how it happened. One of his spurs hooked around the roost and he was trapped hanging upside down. I am not sure how long he had been there, but he is still alive & was limping a little. He is spending the night in one of the nesting boxes. What can I do about his spurs? I have heard that they can't be trimmed, but I am worried that this will happen again. Any thoughts?