General Overview of Spotted Owls

http://www.owlpages.com/species/Strix/occidentalis/

History and Observing Northern Spotted Owls

http://earthobservatory.nasa.gov/Study/SpottedOwls/

Investigation on Populations of Northern Spotted Owls

http://www.nps.gov/noca/spottedowl.htm

Relationship with Barred Owls http://www.aqd.nps.gov/pubs/yir/yir2000/pages/02_nps_science/02_03_gremel.html

Demographic Modeling

http://www.ramas.com/nso-fs.htm

Monitoring

http://www.reo.gov/monitoring/nso/

Territory Size

http://www.nwtrek.org/page.asp?view=136

US Fish and Wildlife Service

http://endangered.fws.gov/i/b6k.html

Student Report

http://animaldiversity.ummz.umich.edu/accounts/strix/s._occidentalis_caurina$narrative.html