Empidonax traillii extimus
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North, B. 1996. Memo to D. Taylor with regard to birds of special concern at WSMR. Weekly reports. 2 p.
Johnson, K., P. Mehlhop, C. Black, and K. Score. 1996. The Southwestern Willow flycatcher on the Middle Rio Grande: Results of 1996 surveys and nest monitoring. Unpubl. report by New Mexico Natural Heritage Program for the U.S. Bureau of Reclamation. 29
Schwarz, H. R. 2000. Y-2000 SWWF report for the Cibola National Forest.
Ahlers, D. and White, L. 1996. Southwestern Willow flycatcher study results. Prepared by U.S Department of the Interior, Bureau of Reclamation. 91p. + appendices.
Unknown (1995) Southwestern Willow Flycatcher Report, Smokey Bear Ranger District, 1995. Lincoln Supervisor's Office, Lincoln Naitonal Forest, USFS. 1 p.
Stoleson, S and D. Finch. 2000. Reproductive success and habitat requirements of the southwestern willow flycatcher in the Cliff-Gila Valley, New Mexico. . 18 p.
Mehlman, D. 1995. 1995 Survey for and habitat characteristics of the Southwestern Willow flycatcher, (Empidonax traillii extimus) in the Isleta-Belen reach of the Rio Grande, New Mexico. Submitted to U.S. Army Corps of Engineers.
Henry, A., P. Mehlhop, and C. Black. 1995. 1995 surveys for the Southwestern Willow flycatcher (Empidonax traillii extimus) near San Marcial, New Mexico. Unpubl. report by New Mexico Natural Heritage Program to the U.S. Army Corps of Engineers. 30 p.
Ahlers, D. and L. White. 1995. 1995 Southwestern Willow Flycatcher survey results; Selected sites along the Rio Grande from Velarde, New Mexico, to the headwaters of Elephant Butte Reservoir. 28 p. + app.