If you’re interested in the history of the conservation, check out this entry on how Hornaday became a conservationist [1] and his subsequent conservation efforts. [2] Stumbled on it about a month back and thought it was pretty cool.

[1] https://en.m.wikipedia.org/wiki/William_Temple_Hornaday#Biog...

[2] https://en.m.wikipedia.org/wiki/William_Temple_Hornaday#Wild...