Contributor
John O'Donnell Media from this contributor Profile
Date
Location
planted spruces and pines north of big spring
Fond du Lac, Wisconsin, United States
Media from this location Illustrated Checklist- Age
- Not specified
- Sex
- Not specified
- Sounds
- Flight call; Flight song; Song
- Playback
- Playback not used
Media notes
Red Crossbills have been observed in this location for the last three weeks; and 30 Red Crossbills were observed here this morning. We recorded at least two (probably more) vocalizing birds and sent the recording to Cornell University where analysis of the recording showed that both Type 2 (Ponderosa Pine) and Type 3 (Western Hemlock) were present on March 4th. We do not know how many of each type were present, and we also do not know which "type" was engaged in courtship today. Three separate Red Crossbill entries were therefore made for this date -- one for Red Crossbill courtship displayed by a pair of unknown Type, one entry for Red Crossbill Type 2, and this entry for Red Crossbill Type 3.
Technical information
- Recorder
- SONY IC Recorder
- Microphone
- Accessories
- Original file size
- 1.79 MB