ML637303577
Contributor
Matthew Francey Media from this contributor
Date
Location
Carden Alvar--Sedge Wren Marsh
Kawartha Lakes, Ontario, Canada
Media from this location Illustrated Checklist- Age
- Not specified
- Sex
- Not specified
- Playback
- Playback not used
Media notes
Bird was 30m to east of bridge, in the open.
Observation details
Six in flight over marsh, two calling near bridge. First time observing the 'glug-a-glug' call being made. Bill snaps at start seem to be partial inflation of an air pouch along neck. The first 'glug' is bill horizontal, mouth opens and then the glug is heard as a gulp of air is forced into pouch. Second glug is a reach up with bill then a snap downward, as the air pouch is forced up and out in a piston-like manner. It looks to be a strenuous effort - muscles up and down throat/pouch are in hard use. The bird appears to tire as a call progresses.
Technical information
- Recorder
- Sound Devices MixPre-6 II
- Microphone
- Sennheiser MKH-8020
- Accessories
- Telinga parabola
- Original file size
- 8.14 MB