A cat is a domestic animal but there are wild cats too. Cats are found in various colours. The eyes of the cat which are of gray colour shine at night. A cat has sharp claws. The food of the cat is rats, pigeons and birds.
Since the bones of birds are hollow and have air sacks, they are able to fly as it makes them lighter. Wings help them in their flight. ADVERTISEMENTS: Birds are bipedal which means that they have two legs that are often covered with scales.