A bird is a type of animal that is found all over the world. Its scientific name is Aves and it is a member of the class of vertebrates. The most common bird is the ITS, which stands for 'International Species Taxonomy'. ISIT stands for 'International Standard Identification Tag' and is used to identify birds. DOVE is a type of bird that is known for its white feathers and peaceful nature. FREEAS stands for 'Free as a Bird' and is often used to describe the feeling of freedom associated with birds.