Yes, the first article here actually says that wild birds are "anxious" to join their captive brethren in zoos. The second article is about deer and elk who escape but then voluntarily return to a fenced area. These are great examples of why we rag on vintage Popular Mechanics
. The undisgused fascism is terrifying. The first article is from 1929, and the second is from 1931. As an offensive bonus, note the article about how a hunted wolf commits suicide by shooting itself, from 1932.