http://rmbo.org/v3/Home/tabid/41/EntryId/91/Fence-Marking-Study-Seeks-to-Reduce-Grouse-Collisions.aspx
http://extension.usu.edu/files/publications/newsletter/Communicator-July_2010.pdf
www.sagegrouseworkshop.org
http://trib.com/news/state-and-regional/blm-mark-fences-for-sage-grouse/article_8456313a-99d3-56dd-84af-2b04b6f7fa05.html