The Hummingbirds of North America, Second Edition

The World According to Bob: The further adventures of one man and his street-wise cat

Sandhill and Whooping Cranes: Ancient Voices Over America's Wetlands

Buffalo for the Broken Heart: Restoring Life to a Black Hills Ranch

Those of the Gray Wind: The Sandhill Cranes, New Edition

The Wild Horse Effect: Awe, Well-Being, and the Transformative Power of Nature

A Chorus of Cranes: The Cranes of North America and the World

Cat Daddy: What the World's Most Incorrigible Cat Taught Me About Life, Love, and Coming Clean

Earth, Water, and Sky: A Naturalist's Stories and Sketches

Never Turn Your Back on an Angus Cow: My Life as a Country Vet

Yellowstone Wildlife: Ecology and Natural History of the Greater Yellowstone Ecosystem

Shamanic Power Animals: Embracing the Teachings of Our Non-Human Friends

Grassland Grouse and Their Conservation

Jens Jensen: Writings Inspired by Nature

Seasons of the Tallgrass Prairie: A Nebraska Year

American Buffalo: In Search of a Lost Icon

How to Raise the Perfect Dog

The 9/11 Dogs: The heroes who searched for survivors at Ground Zero (HarperTrue Friend – A Short Read)

Gorillas in the Mist