Geoffrey A Keller
29 May 2002
- Modoc National Forest, just north of Lava Beds National Monument,
- 1830 meters
- HHB PORTADAT PDR 1000
- Sennheiser MKH 106
- Roche Parabola 74cm/17.7cm (29.1in/7in)
NOTES: "Bird was vocalizing from very top of relatively large coniferous tree at least 80 meters away... The area was a south facing slope containing ponderosa pine and fir species, as well as manzanita and brushy ground covers."