English and Scientific names: |
White-winged Scoter
Melanitta
fusca
|
Number of individuals: |
1
non-adult male |
Locality: LOUISIANA: |
Cameron |
Specific Locality: |
Holly
Beach, ca. 3 miles W of ferry |
Date(s) when observed: |
4/27/2008 |
Time(s) of day when
observed: |
ca.
3:45-4:00 |
Reporting observer and address: |
Paul Conover Lafayette, LA |
Other observers accompanying reporter who also
identified the bird(s): |
Dave
Patton |
Other
observers who independently identified the bird(s): |
|
Light
conditions (position of bird in relation to shade and to direction and amount
of light): |
Bright, seas conditions with enough wave to
make birds bob in and out of sight. |
Optical equipment: |
Nikon
Fieldscope III, 60mm with 20-60 zoom. |
Distance to
bird(s): |
70-100 yards |
Duration of
observation: |
10-15
minutes of viewing |
Habitat: |
Gulf, nearshore. |
Behavior of bird: |
Bird was drifting, not diving. The bird was
in a flock of perhaps a dozen mixed sex and age Surf Scoters, and 1 adult
male Black Scoter. |
Description: |
While scoping a flock of scoters where Patton
had observed a WWSC the day before, we noticed a seemingly all dark scoter on
the edge of the flock. The bird’s posture and shape seemed different from the
other scoters, with a rounder curve to the higher back(=slightly more humped),
and a different bill shape from the others. The light was horrible, frankly,
but we walked to the beach and got to within about 70 yards of the bird. The
bird was brown on the sides, darker on the mantle and head.From the shape of
the bill, it appeared that a small thinner tip of bill extended from a
thicker, presumably thivkly feathered, base. The bill was readily comparable
to the Surf next to it. A Black Scoter was nearby for comparison as well. The bird began to preen, revealing obvious
bright white secondaries. The white panel extended throughout the
secondaries. I watched it open and speard one wing at a time and pull the
feathers of the secondaries with its bill for perhaps a minute, getting nice
looks. We weren’t able to see any pale head
markings, but we tried to take photos through the scope. I took a few that are
worthless, and was going to make sure I got diagnostic photos, but Mac Myers
pulled up on the highway and began to wave frantically; he had news of a
Black Rail, so we left quickly without hard documentation. |
Voice: |
Not
heard. |
Similar
species: |
The bulkiness and all-dark coloration
separate this bird from dabblers such as Gadwall. Among the scoters, only WW
has white secondaries. |
Photographs
or tape recordings obtained? |
Very poor. Probably not useful. One
included for shape. |
Previous
experience with this species: |
Seen a few times before. Not extensive
experience w/WW, but field marks are obvious, and I do have wider experience
with the other scoters. |
Identification aids: |
|
This description is written from: |
Memory. I had plenty of time to note and
repeat all of the field marks as I watched it. |
Are
you positive of your identification? If not, explain: |
Yes. |
Reporter: |
Paul
Conover
|
Date and time: |
June 2008 |