This bird is classified in the suborder of birds.

I like observing birds.

I saw a bird in the park.

In this library, books are classified by genre.

He categorized the books by genre.

The horned puffin lives in the cold waters of the North Pacific.

Feliformia, part of the order Carnivora, includes large feline animals such as lions and tigers.

His eyes are very sharp.

He is an expert in ornithology, studying types of birds all over the world.

This insect belongs to the subfamily of stink bugs.