Geoffrey A Keller
31 May 2002
- Inyo National Forest, near the crest of the Tioga Pass
- 2740 meters
No locations found with lat/long
- HHB PORTADAT PDR 1000
- Sennheiser MKH 106
- Roche Parabola 74cm/17.7cm (29.1in/7in)
NOTES: "Bird was vocalizing from small coniferous tree at edge of snow field... The area contained coniferous trees, a few shrubs, and high barren peaks."
BNA: The Male Song is heard. CZ 24/06/2004.