kHz
ML170967251
Contribuidor
Mark W11 Kulstad Media from this contributor Perfil
Fecha
Localidad
Grand Teton NP--Gros Ventre CG
Teton, Wyoming, United States
Media from this location Listado ilustrado- Edad
- No especificado
- Sexo
- No especificado
- Playback
- No especificado
Comentarios
Hard to hear because of the river below the bank. Pulses of 2-3 quick, raspy notes stand out.
Detalles de la observación
nesting colony high in gravel bank on south side of Gros Ventre River. I estimate the bank to be about 75 yards in length, with about 5 holes per yard. At peak moments there seemed to be about 200 bank swallows in the air above the river by the colony. With others foraging farther away (at least a quarter mile away) and some in the holes, including young, this supports the estimate of 500.
Información técnica
- Grabadora
- Micrófono
- Accesorios
- Original file size
- 159.79 KB