Leonard J Peyton
12 Jun 1982
- Highway pass area-Mt. McKinley National Park
- 63.4666667 -150.1
- 1373 meters
- NAGRA III
- Sennheiser MKH 104
- Parabola 99.1cm/30.5cm (39in/12in)
Nest had one egg. This pair of birds were diving on a pair of Rock Ptarmigan. The sounds given by the Ptarmigan were recorded.
These birds were also flying and diving at me and sitting on nest. When not vocalizing, birds were flying.