Carlsbad Caverns National Park southwestern willow flycatcher surveys and intensive point count surveys at Rattlesnake Springs, 2022 and 2023: Final report
MacFarland JC. 2025. Carlsbad Caverns National Park southwestern willow flycatcher surveys and intensive point count surveys at Rattlesnake Springs, 2022 and 2023: Final report. Science Report. NPS/SR—2025/232. National Park Service. Fort Collins, Colorado. https://doi.org/10.36967/2306229
In 2022, Southwestern Willow Flycatcher Surveys and Intensive 10-minute Point Count Surveys for all bird species were conducted on July 6, 2022, and July 12, 2022 in Rattlesnake Springs area within Carlsbad Caverns National Park and The Nature Conservancy’s Rattlesnake Springs Preserve. Two Tucson Audubon staff members conducted these surveys and are both permitted by USFWS to conduct the official USFWS Southwestern Willow Flycatcher Survey Protocol. One hundred sixty-five Southwestern Willow Flycatcher call-back protocol point counts were conducted with zero detections. The Arizona Important Bird Areas Intensive Point Count Protocol for 10-minute surveys for all bird species detected a total of 31 species with 8 additional species detected by surveyors between point counts. In 2023, USFWS Southwestern Willow Flycatcher Surveys and Intensive 10-minute Point Count Surveys for all bird species were conducted on May 15, June 5, June 13, June 27, and July 10, 2023. Four Tucson Audubon staff members conducted these surveys, and all were permitted by USFWS to conduct the official USFWS Southwestern Willow Flycatcher Survey Protocol. Five hundred nineteen Southwestern Willow Flycatcher call-back protocol point counts were conducted with positive detections on June 5, 2023 (one bird), June 13, 2023 (two birds, likely pair), and June 27, 2023 (three birds, 1 pair and a single). The all-species 10-minute Intensive Point Count Protocol detected a total of 58 species with 3 additional species detected by surveyors between point counts.
- Type
- Published Report
- Authors
- MacFarland, Jennifer
- Date of Issue
- 2025-01
- Publisher
- National Park Service
- DOI
- 10.36967/2306229
- Units
- CAVE , NRSS
- Keywords
- Inventory and Monitoring Division, NPS Inventory Program, southwestern willow flycatcher, species inventory
- Subjects
- Ecological Framework: Biological Integrity | At-risk Biota | T&E Species and Communities