David A Sibley
12 Jun 1981
- 6.0 km NE of Alpine (Connecticut Hill)
- NAGRA III
- Sennheiser MKH 104
- Sony PBR-330 Parabola 32.8cm/6.5cm(12.9in/2.6in)
NOTES: (Cover Density: Medium.) Highly unusual song for Yellowthroat. Somewhat reminiscent of Canada Warbler but not as strong. Chips are alarm of Chestnut-sided Warbler.
(MLNS Notes: HPF@225 hz when digitized. CZ 14/10/03)