Empidonax traillii extimus
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Cleary, D. 1993. Personal communication to S.O. Williams regarding SW Willow flycatchers in NM. Information summarized by S.O. Williams.
Boucher, P. 1993. Personal communication by phone and electronic mail to S.O. Williams III regarding SW Willow flycatchers sighted along San Francisco River, NM. Information summarized by S.O. Williams III, NM Dept Game and Fish.
Cibola National Forest. 1992. Memo providing overview of bird surveys done by H. Schwarz in the Manzano and Gallinas Mountains. 13 p.
Hubbard, J.P. 1987. The status of the Willow flycatcher in New Mexico. Endangered Species Program, NM Dept. of Game and Fish. 29pp.
D. Ahlers, Bureau of Reclamation. 2017. Survey forms for Southwest Willow Flycatcher and Yellow-billed Cuckoo for 2017.
Keller, D. 2016. Southwestern Willow Flycatcher permit report, TE-230274. Los Alamos National Laboratory.
Keller, D.C. 2013. Mexican Spotted Owl and Southwestern Willow Flycatcher surveys at Los Alamos National Laboratory. Submitted to U.S. Fish and Wildlife Service, TE800892-0.
Schwarz, H.R. 2013. Willow Flycatcher survey and detection form, Bluewater Creek. Cibola National Forest. 4p.
Chavez, A. and Ramsey, M. 2010. 2009 Southwest Willow Flycatcher Surveys at Bluewater Canyon, Lost Valley and San Ysidro, NM in the BLM Rio Puerco Field Office.