This is seen frequently in animals with ear infections that dig at the skin behind the sore ear with their rear claws. Horses in pain become restless and paw at the ground. They may look at the painful area and try to kick at it or roll around in the dirt. If the pain is very severe, they may refuse to move and prefer to stand with their head drooping. These are all common signs of abdominal pain, or colic, in horses.
Cattle frequently grind their teeth when they are in pain.
They may groan when they get up or take only shallow breaths. In dairy cows, a drop in milk production is often a reaction to a painful hoof or udder. Birds will frequently pluck their feathers from a painful area. It should be noted however, that feather plucking, also called feather picking, can be a behavioral problem seen in otherwise healthy birds. If the pain is deep and generally debilitating the animal may be depressed and hesitate to do any physical activity.