Philadelphus wootonii
Schwarz, H.. 1997. Cibola National Forest Northern Goshawks: summary survey reports. 1 p.
Williams, S.O. 1996. Letter to M. Altenbach with copies of 37 breeding records for Northern Goshawks spanning 1935-1993. 26 p.
Navajo Natural Heritage Program. 1996. EOR printout of Northern Goshawk sighting.
Mt. Taylor Ranger District. 1995. Northern Goshawk monitoring forms.
1995 Northern Goshawk Annual Report. Sacramento Ranger District. Lincoln National Forest. Prepared by Sue McClenahan, reviewed by Danney Salas.
Gila National Forest. 1995. Northern Goshawk informal monitoring and inventory report.
Santa Fe National Forest. 1994. Field forms and maps for Northern Goshawk nest and territory monitoring for 1994.
Snyder, H. 1992. Nest forms and territory maps for Douglas R.D., Carson N.F. occurrences of Northern Goshawks. 5pp.
Schwarz, H.R. Northern Goshawk annual report for 1992. For Cibola N.F. 1992-10-19.
1992 Northern Goshawk Annual Report. Cloudcroft and Mayhill Ranger Districts. Lincoln National Forest. Prepared by Russ Romme.