Geoffrey A Keller
20 May 2001
- 1.6 km NW of Petrolia
- 122 meters
No locations found with lat/long
- HHB PORTADAT PDR 1000
- Sennheiser MKH 106
- Roche Parabola 74cm/17.7cm (29.1in/7in)
NOTES: "Bird was vocalizing from unknown location in extensive grassy field containing isolated shrubs..."
BNA: Primary Song ("tsick, tsick, tsurrrrrrr" or "tip-tup-a-zeeeeeee") is heard. CZ 03/06/2004.