Empidonax traillii extimus

Sadoti, G., K. Johnson, and J. Smith. 2003. Delineation of Southwestern Willow Flycatcher and Yellow-billed Cuckoo habitat on White Sands Missile Range. White Sands Missile Range Environmental Document. WSMR97F014-2003. 47 p.

Johnson, M. 2021. Permit data for SWFL and YBCU for 2020 and 2021 TE43746A-3

• Southwestern Willow Flycatcher
• Empidonax traillii extimus
• Western Yellow-billed Cuckoo
• Coccyzus americanus occidentalis

Meyer, R. 2020. La Tierra Environmental Consulting FWS permit report.

• Northern Aplomado Falcon
• Falco femoralis septentrionalis
• Southwestern Willow Flycatcher
• Willow Flycatcher
• Empidonax traillii
• Empidonax traillii extimus

Abeyta, E. 2025. FWS permit data from surveys for Willow Flycatchers. Elisa Abeyta ESPER1902037.

• Empidonax traillii
• Empidonax traillii extimus
• Willow Flycatcher
• Southwestern Willow Flycatcher

Hawks Aloft. 2024. FWS survey data for Willow Flycatcher.

• Empidonax traillii
• Empidonax traillii extimus
• Southwestern Willow Flycatcher
• Willow Flycatcher

Hawks Aloft. 2023. FWS permit data for Willow Flycatcher from Hawks Aloft.

• Empidonax traillii
• Empidonax traillii extimus
• Southwestern Willow Flycatcher
• Willow Flycatcher

Williams, S.O., III. 1999. Email from state ornithologist to P. Mehlhop. New sites for Empidonax traillii extimus. 2 p.

• Empidonax traillii extimus

Hawks Aloft, Inc. 1998. Annual report of the breeding bird surveys and Southwestern Willow Flycatcher surveys, Rio Puerco Resource Area. 81 p.

Ahlers, D. and Tisdale, R. 1998. Cowbird control program; Middle Rio Grande, New Mexico.

• Empidonax traillii extimus
• Molothrus ater

West, S. (1997). Willow Flycatcher Survey and Detection Form. Sitting Bull Falls, Guadalupe RD, Lincoln NF, USFS.

• Empidonax traillii extimus