Melanitta deglandi
Silhouette: Sheatherius · PhyloPic
In 3 days <5%
The white-winged scoter (Melanitta deglandi) is a large sea duck. The genus name is derived from Ancient Greek melas "black" and netta "duck". The species name commemorates French ornithologist Côme-Damien Degland. The white-winged scoter is one of three North American scoter species and the largest species of scoter. Females range from 950 to 1,950 g (2.09 to 4.30 lb) and 48 to 56 cm (19 to 22 in), averaging 1,180 g (2.60 lb) and 52.3 cm (20.6 in). The male ranges from 1,360 to 2,128 g (2.998 to 4.691 lb) and from 53 to 60 cm (21 to 24 in), averaging 1,380 g (3.04 lb) and 55 cm (22 in). The white-winged scoter has a wingspan of 31.5 in (80 cm). This species is characterized by its bulky shape and large bill, which is feathered at the gape unlike the blocky bill base of the surf scoter. The white secondary flight feathers by which the species is named is visible in flight, but may be concealed when swimming.
The male is all black, except for white around the eye and a white speculum. The bill is orange and red with a large black knob at the base. It takes three years for definitive (adult) plumage to be attained – second-year males resemble adult males but exhibit... Wikipedia →
Call0:16
Canada · 2014
© Andrew Spencer · XC181618 · CC BY-NC-SA 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Bear Rainforest | 🇨🇦 Canada | |
| 2 | Pacific Rim National Park Reserve | 🇨🇦 Canada | |
| 3 | Cape Breton Highlands National Park | 🇨🇦 Canada | |
| 4 | Olympic National Park | 🇺🇸 United States | |
| 5 | Redwood National Park | 🇺🇸 United States | |
| 6 | Kenai Fjords National Park | 🇺🇸 United States | |
| 7 | Acadia National Park | 🇺🇸 United States | |
| 8 | Katmai National Park | 🇺🇸 United States | |
| 9 | Wrangell-St. Elias National Park | 🇺🇸 United States | |
| 10 | Kluane National Park | 🇨🇦 Canada | |
| 11 | Point Pelee National Park | 🇨🇦 Canada | |
| 12 | Gros Morne National Park | 🇨🇦 Canada | |
| 13 | Channel Islands National Park | 🇺🇸 United States | |
| 14 | Jasper National Park | 🇨🇦 Canada | |
| 15 | Denali National Park | 🇺🇸 United States | |
| 16 | Banff National Park | 🇨🇦 Canada | |
| 17 | Merritt Island National Wildlife Refuge | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Toronto | 🇨🇦 Canada | |
| 3 | Seattle | 🇺🇸 United States | |
| 4 | Anchorage | 🇺🇸 United States | |
| 5 | Montreal | 🇨🇦 Canada | |
| 6 | Mesa | 🇺🇸 United States | |
| 7 | Vancouver | 🇨🇦 Canada | |
| 8 | San Francisco | 🇺🇸 United States | |
| 9 | Chicago | 🇺🇸 United States | |
| 10 | Las Vegas | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Buttonwood Park Zoo | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an American White-winged Scoter sighting in Mesa on a given day, based on 143 verified sightings from GBIF citizen-science data. It is the 174th most-seen of the 268 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
January
In that month about 10% of wildlife watchers report an American White-winged Scoter in Mesa on a given day, against under 5% in February to December, the lowest months. That is one of Mesa's wettest months, with about 35 mm of rain against almost none in June.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most American White-winged Scoter sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 18 cities where we can rate American White-winged Scoter sightings, Mesa ranks 6th at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%), Toronto (Canada, under 5%) and Seattle (United States, under 5%).
Same family: Anatidae
The closest relatives of the American White-winged Scoter that you can see in Mesa (family Anatidae, Ducks, Geese, and Swans) are Mallard (about 70%), Northern Shoveler (about 40%) and American Wigeon (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the American White-winged Scoter is recorded against all the birds logged in Mesa (143 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
