Does the cold have any effect on guineas claws? We are in N. Michigan. We never had any claw problems until the last month or so. Now half my guineas have broken off their claws, some more than one claw. It is a bloody mess and looks painful. To me it seems that the claws are really brittle. I picked up one bird to check her over. Her claw snagged on my coat and just that caused her claw to snap and start bleeding. So is it the cold or a vitamin or nutritional issue?