About a week ago I went to my loft and one of my cocks fell to the ground and could not fly or stand, when I picked him up he was cold to the touch and was breathing strange. I placed him in a cage with a heat lamp and in about two days he was flying and eating and is now ok as far as I can tell. So today I go to my loft and the hen he has been breeding with, who has been fine, falls to the floor of the loft and in about 30 sec. is dead. She appeared fine when I went in the loft, and then she just hit the floor and died. I need help because I don't have a clue what's going on with them and I don't want to have another one die this way.