Matthew D Medler
19 Mar 2000
- Organ Pipe Cactus National Monument; Alamo Canyon Trail
- 32.070819 -112.726866
- HHB PORTADAT PDR 1000
- Roche Parabola 60cm/14.5cm (23.6in/5.7in)
NOTES: LNS- High-pass filter at 250 Hz.
[Sixteen examples of the "peek" Call Note of BNA. Quality added (2 - approaching 2-1, but with some wind noise) - CAM - 19 April 2005]