Birnamwood has been a member of Audubon International since 1999 and became certified as an Audubon Cooperative Sanctuary in 2002. Birnamwood is the smallest golf course in the world and the only nine-hole course in the State of Minnesota to receive this designation. The Audubon Cooperative Sanctuary Program helps golf courses enhance wildlife and the game of golf.
Birnamwood's environmental responsibilities include monitoring water quality, conserving wildlife and their habitats and using appropriate cultural and integrated pest management methods to manage turf areas.