A person who studies birds is called an ornithologist.

Meanwhile, Scout is outside and he starts studying birds and fish.

When possible, he travels with fellow bird watchers to study birds in their natural habitat.

Man studied birds for centuries, trying to learn how to make a machine to fly like them.

She shares his fervent interest in studying birds and other wildlife.

People who study birds as a profession are called ornithologists.

He spent his spare time studying birds and became an accomplished taxidermist.

A naturalist from his youth he studied insects and birds.

"We studied birds at first, because birds live a very long time for their size."

From 1841 he decided to live there and from 1843 he studied birds on the island.