Empidonax traillii extimus
Hummel, O. 2014. Endangered and threatened species recovery report. Submitted to U.S. Fish and Wildlife Service, TE-797127. Albuquerque District, Army Corps of Engineers. 73 p.
Hawks Aloft, Inc. 2010. 2010 Willow Flycatcher Surveys at Bluewater Canyon, Lost Valley, San Ysidro, and Wilson Canyon, New Mexico. Submitted to the Bureau of Land Management Albuquerque Field Office, October 2010.
Ecosphere Environmental Services. 2010. Biological assessment and evaluation for the proposed river to lake waterline, San Juan County, New Mexico. Prepared for Public Service Company of New Mexico.
Bureau of Reclamation. 2008. Southwestern Willow Flycatcher detections through June 13, 2008.
Stahlecker, D. W and Cox, N. S. 1997. Bosque biological monitoring program: bird populations in Rio Grande Valley State Park, winter 1996-97 and spring 1997.
Hawks Aloft, Inc. 2003. Field inventory of the breeding birds in the Albuquerque Resource Area. 82 p.
Fullerton, W and D. Batts. 2003. A framework for a restoration vision for the Rio Grande: Hope for a living river. The Alliance for Rio Grande Heritage. World Wildlife Fund.. 131 p.
Schwarz, H. 1997. Cibola National Forest breeding bird survey report for 1997.
Johnson, K., Mehlhop, P., and DeLay, L.. 1997. Willow flycatcher surveys and evaluation of potential willow flycatcher habitat in the BLM Roswell Resource Area, 1997. 26 p.
Hawks Aloft, Inc. 2002. Southwestern Willow Flycatcher Surveys: Annual Report. 20 p.