Contributor
Sharon Peterson Media from this contributor Profile
Date
Location
Julia Butler Hansen NWR
Wahkiakum, Washington, United States
Media from this location Illustrated Checklist- Age
- Not specified
- Sex
- Not specified
Observation details
Note the lack of any distinct yellow near the eyes. Other species considered but eliminated: Trumpeter Swan: 1) Lack of a "door stop head", rather these birds have culmen dished and crown more rounded. 2) these birds have margins between softpart mandibles and head featrhers curved, not straight. 3) as compared to Trumpeter, these birds eyes are more isolated rather than conjoined with the mandible. Whooper Swan: Lack of extensive yellowish on the bills. Mute Swan: lack of orange bill and bill knob. Birds did not vocalize.
Technical information
- Model
- NIKON D700
- ISO
- 640
- Focal length
- 400 mm
- Flash
- Flash did not fire
- f-stop
- f/4.0
- Shutter speed
- 1/1250 sec
- Dimensions
- 967 pixels x 690 pixels
- Original file size
- 454.2 KB