I recently butchered one of my roosters and was blown away by how much fat was in him. His quizzard was covered in fat and his abdomen had a solid chunk about 1/4" thick and as large as my hand. I'd be happy if I were raising them to eat but, that is not my goal now. I'm feeding them Flock Raiser-20% protien. Should I be concerned, or as my wife suggests, do they put on excess fat during the winter? Can chickens get too fat?