The Wings are paddle-like flippers. The bones are more flattened and broadened with the joint of the elbow and wrist almost fused together, with strong ligaments. This forms a rigid, tapered and flat flipper which is excellent for swimming. More information on the Feathers . Head Penguins have different patterns of head feathers depending on what species they are.
Different species have different coloured eyes.
Many species have brown, reddish brown or golden-brown eyes. Rockhopper and Macaroni Penguins have red eyes. Penguins have bluish-grey eyes. As their name implies, Yellow-Eyed Penguins have yellow eyes. Bill Penguins have a variety of bill shapes which are used to capture fish, squid and Crustaceans.