Birds and crocodiles
are very different. The bodies of crocodile are covered with scales but the bodies
of birds are covered with feathers. Most
of birds can fly but crocodiles can't. Crocodiles crawl on the earth, also
they swim. Some birds can swim and dive too. Crocodiles are predators, they are
dangerous even for people, they have sharp teeth. Most of birds are
smaller than crocodiles. They are weak,
many of them eat plant food.