Examines the effects of releasing thirty-one Canadian gray wolves into Yellowstone National Park in 1995 and 1996, including changed behavior patterns and changes in the ecosystem.

"A beautifully illustrated, large-format study of Yellowstone's birdlife, written by a team of renowned Park ornithologists and wildlife biologists"-- "A beautifully illustrated survey of Yellowstone's breathtaking birdlife, written by a team of renowned ornithologists and wildlife biologists. Established in 1872, Yellowstone National Park is the oldest and arguably the most famous national park in North America, attracting millions of visitors each...