Below the moon (or cow) is a sheep (or dog) who also seems ready to rumble, and to the right of the sheep (or dog) is an eagle with a cloud above its head, or maybe a cartoon balloon showing what the eagle is thinking (it's tough to make out), probably something very funny, indicating that the eagle hopes to get its own comic strip some day.
An eagle is depicted in the artwork, along with what looks like a sheep, but might be a dog.