David S Herr
10 Sep 1990
- 21.0 km E of Walla Walla, WA; N. Fork Copper Creek
- 46.1666667 -118.1166667
- 610 meters
- Deciduous Forest
- NAGRA IV-D
- Sennheiser MKH 816T
NOTES: Breeding status: Territorial
Recordist notes: Recorded on cut; Two birds responding to playback of taped call. Located along N. Fork Copper Creek. Example of approach call. Both birds approx 25-30' above my head in cottonwood.
ML Notes: Both Bouncing Ball and possibly Double Trill calls are heard in this recording. CZ 06/01/2004.