2021
Johnson, M. 2021. Permit data for SWFL and YBCU for 2020 and 2021 TE43746A-3
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Empidonax traillii extimus
Johnson, M. 2021. Permit data for SWFL and YBCU for 2020 and 2021 TE43746A-3
Meyer, R. 2020. La Tierra Environmental Consulting FWS permit report.
Abeyta, E. 2025. FWS permit data from surveys for Willow Flycatchers. Elisa Abeyta ESPER1902037.
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Hawks Aloft. 2023. FWS permit data for Willow Flycatcher from Hawks Aloft.
Williams, S.O., III. 1999. Email from state ornithologist to P. Mehlhop. New sites for Empidonax traillii extimus. 2 p.
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