Northern Saw-whet Owl
Response to playback: Approach.
Geoffrey A Keller
21 May 1988
- 7.0 km S of Charleston; South Slough Sanctuary
- 30 meters
- Coniferous Forest
- UHER 4200 REPORT IC
- Roche Parabola 74cm/17.7cm (29.1in/7in)
NOTES: Breeding status: ?breeding ?territorial
Sound category: ?song
ML Notes: The call heard is likely to be the advertising call, described in the BNA as a monotonous series of whistled notes on a constant pitch. CZ 07/01/2004.