If you live in America, you may be familiar with the loud, chirping birds called cockatiels that reside in many homes. This ...

These feathers are used to communicate a cockatiel's mood. Like all parrots, the cockatiel's beak is curved and pointed, with rounded nostrils sitting at the top of the beak. The bills and legs ...

Bird beaks come in almost every shape and size - from the straw-like beak of a hummingbird to the slicing, knife-like beak of an eagle. We have found, however, that this incredible diversity is ...