Gregory F Budney
2 Jun 1997
- Yellowstone National Park, Mammoth
- HHB PORTADAT PDR 1000
- Telinga Parabola 54.7cm/15.5cm (21.5in/6.1in)
NOTES: Notes on tape: "vocalizations of Cliff Swallows, a colony on the back end of what looks like a garage or untility building behind the main administrative building at Mammoth, Yellowstone National Park. Telinga Pro III is in cut."