L. Irby Davis
17 Apr 1956
- near Comitán
- 1435 meters
No locations found with lat/long
- MAGNEMITE 610E
- Electro-Voice 650
- Parabola (Unknown Diameter/Focal Length)
A mixed whistle (probably two birds) at first, then a "clap-clap" and a long purr or roll. After this another whistle (complete and single) then a "clap-clap" and roll.
ML: 400 Hz high pass filter applied.