Geoffrey A Keller
29 May 2001
- 27.4 km S of Onyx; Piute Mountains
- 1950 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 understory of open understory of Ponderosa Pine forest..."
BNA: Probably the Chack calls are heard. CZ 11/06/2004.