Sulphur-crested Cockatoo
Michael Korcuska / Flickr / CC BY-SA 2.0
The expressive hairstyle of this large Australian bird is almost larger than life—it can stretch over five inches in length. This cockatoo isn't only known for its colorful hairdo, it also has a harsh screeching call that distinguishes it from birds with musical talent. Sulphur-crested cockatoos are social birds, spending time in groups as they forage and keep a lookout for danger.