The Minds and Manners of Wild Animals, a Book of Personal Observations

First published in 1921. According to Wikipedia: "William Temple Hornaday, Sc.D. (December 1, 1854 – March 6, 1937) was an American zoologist, realtor, conservationist, author, poet and songwriter. He revolutionized museum exhibits by displaying wildlife in their natural settings, and is credited with discovering the American crocodile, saving the American bison and the Alaskan fur seal from extinction.”