Wake-Robin: A Collection of Essays About the Birds

Buried in the Sky: The Extraordinary Story of the Sherpa Climbers on K2's Deadliest Day

Camping and Tramping with Roosevelt

Desert Solitaire

The Last Harvest

The Invention of Nature: Alexander von Humboldt's New World

Locusts and Wild Honey

The Voyage of the Beagle

Bird Stories from Burroughs - Sketches of Bird Life Taken from the Works of John Burroughs

Zeitoun

John James Audubon

The Last Rhinos: My Battle to Save One of the World's Greatest Creatures

Birds and Poets

Toms River: A Story of Science and Salvation

Time and Change

Part of the Pride: My Life Among the Big Cats of Africa

Fresh Fields

Epic Survival: Extreme Adventure, Stone Age Wisdom, and Lessons in Living From a Modern Hunter-Gatherer

Squirrels and Other Fur-Bearers

American Wolf: A True Story of Survival and Obsession in the West