Cow's Instincts...Don't It? Cow and Chicken : Season 1 Episode 16

Cow learns that she has a herding instinct, and soon starts to fit in with other crowds such as flocks of ducks, schools of fish, and the military. She soon learns that she is supposed to herd with other cows, so she does, but soon dislikes it when all the other cows do nothing but stand and eat grass.