Greater Scaup
Aythya marila
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderAnseriformes
- FamilyAnatidae (Anàtids)
- GenusAythya (Scaups, Pochards, and Allies)
- SpeciesAythya marila (Greater Scaup)
Closest Relatives at Katmai National Park
Ring-necked Duck
Aythya collaris
Common Merganser
Mergus merganser
Mallard
Anas platyrhynchos
Red-breasted Merganser
Mergus serrator
Common Teal
Anas crecca
Common Goldeneye
Bucephala clangula
Harlequin Duck
Histrionicus histrionicus
Barrow's Goldeneye
Bucephala islandica
American White-winged Scoter
Melanitta deglandi
Trumpeter Swan
Cygnus buccinator
Tundra Swan
Cygnus columbianus
Northern Pintail
Anas acuta
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
Quick answers
What are the chances of seeing a Greater Scaup in Katmai National Park?
About 3% of visitor-days record a Greater Scaup sighting in Katmai National Park, based on 5 observer-days of citizen-science data from GBIF.
When is the best time to see Greater Scaup in Katmai National Park?
March has the highest sighting rate for Greater Scaup in Katmai National Park in our monthly data.