Jeremy Greenwood

British ornithologist, author and broadcaster

British physicist and ornithologist

British ornithologist

British ornithologist and civil servant

English ornithologist

British ornithologist

English ornithologist, writer, and broadcaster

British Ornithologist

British and Australian metallurgist and amateur ornithologist

Ornithologist

Australian amateur ornithologist

Ornithologist and writer

British naturalist

British ornithologist and television producer

Biologist

English ornithologist

British ornithologist

Australian ornithologist and photographer

British ornithologist

British ornithologist

English surgeon and ornithologist

English ornithologist

British ornithologist and conservationist

British ornithologist and writer

Austrian ornithologist (1847–1924)

Geneticist and Professor at the University of Edinburgh

British ornithologist

British ornithologist and biologist

British biologist

American ornithologist

British zoologist and author

British ornithologist, zoologist, naturalist, conservationist, and author

British ecologist

Research Ecologist

British ornithologist

British ornithologist and writer

British zoologist and museum curator

Scottish ornithologist

British ornithologist

British ornithologist, conservationist, painter, naval officer and sportsman

British businessman and ornithologist

French biologist

British businessman