Allan W. Eckert Non-Fiction

A Time of Terror

1965

Owls of North America

1973

The Wading Birds of North America

1978

Whattizit? Nature Pun Quizzes

1981

A Sorrow in Our Heart

1992

The World of Opals

1997

The Silent Sky

2000

Dark Journey

2009

The Infinite Dream

2011