1997
Yong, W. and D. M. Finch. 1997. Migration of the willow flycatcher along the Middle Rio Grande. Wilson Bulletin. 109(2):253-268.
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Empidonax traillii extimus
Yong, W. and D. M. Finch. 1997. Migration of the willow flycatcher along the Middle Rio Grande. Wilson Bulletin. 109(2):253-268.
Ligon, J.S.. 1961. New Mexico birds and where to find them. Univ. of New Mexico Press.
Mehlhop, P. 1999. Willow Flycatcher survey and detection form with data from San Marcial Condo site. 11 p.
Williams, S.O. 1996. Data sheets for Willow Flycatcher surveys on BLM land. New Mexico Department of Game and Fish.
Stahlecker, D. 1996. Willow flycatcher and raptor survey data sheets for work on the BLM Rio Puerco Resource Area. For U.S. Fish and Wildlife Service.
Schwarz, H. 2013. Cibola National Forest Willow Flycatcher surveys at Bluewater, Zuni Mountains.
Shook, R. 2017. Southwestern Willow Flycatcher (Empidonax trailii extimus) Survey Results: Annual FWS permit report. FWS Permit #TE000948. Western New Mexico University, Silver City, NM.
Cienega Environmental. 2017. Annual permit data for Mexican Spotted Owl and Southwestern Willow Flycatcher. FWS permit #TE48752B.
Inslee, A. 2013. Flycatcher surveys at Bosque del Apache National Wildlife Refuge. Report to U.S. Fish and Wildlife Service, Section 10 TE-676811.
Inslee, Ashley. 2012. Bosque del Apache National Wildlife Refuge Southwestern Willow Flycatcher data. Report submitted to U.S. Fish and Wildlife Service, TE-676811.