The Waterfowl of North America: The Complete Ducks, Geese, and Swans
Those of the Gray Wind: The Sandhill Cranes, New Edition
Sandhill and Whooping Cranes: Ancient Voices over America's Wetlands
Dragons and Unicorns: A Natural History
Crane Music: A Natural History of American Cranes
Trogons and Quetzals of the World
The North American Sea Ducks
This Fragile Land: A Natural History of the Nebraska Sandhills
Hawks, Eagles and Falcons of North America: Biology and Natural History
Baby Bird Portraits: Watercolors in the Field Museum