Verification of Unusual
Sight Record
For Utah
Rec. # 2007-42
Common name: |
Black Scoter |
Scientific name: | Melanitta nigra |
Date: | 11-07-07 |
Time: | 5 minutes |
Length of time observed: | |
Number: | 2 |
Age: | adult and juvenile |
Sex: | female and juvenile |
Location: | Otter Creek State Park |
County: | Piute |
Latilong: | 15 or 16 |
Elevation: | 6625 ft |
Distance to bird: | 50 - 150 m |
Optical equipment: | Ziess 85t diascope (20-60x) |
Weather: | clear and calm |
Light Conditions: | full sunlight |
Description: Size of bird: | |
(Description:) Basic Shape: | |
(Description:) Overall Pattern: | |
(Description:) Bill Type: | |
(Description:)
Field Marks and Identifying Characteristics: |
Fairly large ducks with chunky bodies, round heads, and relatively small sloped
bills. Adult Female: uniformly dark brownish black (including belly and breast) with white cheek patch extending from base of black bill below the eye and down the throat, and crisply demarcated from dark crown, nape, and upper breast. Juvenile: same as the adult female but slightly lighter overall with pale breast and belly and less sharply defined face patch. (see photo) |
Song or call & method of delivery: | none |
Behavior: | The two Black Scoters were not associating with each other and were in different parts of the reservoir. The adult was alone, actively feeding and diving fairly close to the east shore about mid-lake. At one point, I believe it was eating a California Floater, Anodonta sp. The juvenile was resting near Buffleheads, Canvasbacks, and several female Common Goldeneyes. There were also several groups of juvenile Surf Scoters around the lake. |
Habitat: | long narrow reservoir |
Similar
species and
how were they eliminated: |
juvenile Surf Scoter eliminated by shapeof bill, and face pattern |
Previous
experience with this & similar species: |
familiar with Scoter species. I've seen a total of nine Black Scoters in southern Utah since 2001 (including five observed 11-06 through 11-07-07). |
References consulted: | |
Description from: | Notes made later |
Observer: | Rick Fridell |
Observer's address: | Hurricane, UT |
Observer's e-mail address: | rfridell@redrock.net |
Other observers who independently identified this bird: | |
Date prepared: | 11-07-07 |
Additional material: | digiscope image attached |
Additional Comments: | Descriptions above copied from field notes, and are nearly the same as those I wrote for the Panguitch Lake Black Scoters also observed 11-07-07. |