Geoffrey A Keller
30 May 2001
- 27.4 km NW of Kernville; Sequoia National Forest; Holy Meadow Campground
- 2060 meters
- HHB PORTADAT PDR 1000
- Sennheiser MKH 106
- Roche Parabola 74cm/17.7cm (29.1in/7in)
NOTES: "Bird was vocalizing in numerous locations in very top of relatively young coniferous trees... This vocalization is given at about one hour before dusk, and it was also given about the same time 24 hours earlier."