Lesser Scaup
Aythya affinis
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderAnseriformes
- FamilyAnatidae (Anàtids)
- GenusAythya (Scaups, Pochards, and Allies)
- SpeciesAythya affinis (Lesser Scaup)
Closest Relatives at El Vizcaíno Biosphere Reserve
Redhead
Aythya americana
Ring-necked Duck
Aythya collaris
Greater Scaup
Aythya marila
Canvasback
Aythya valisineria
Northern Pintail
Anas acuta
Brant
Branta bernicla
American Wigeon
Mareca americana
Red-breasted Merganser
Mergus serrator
Anas cyanoptera
Spatula cyanoptera
Surf Scoter
Melanitta perspicillata
Northern Shoveler
Spatula clypeata
Ruddy Duck
Oxyura jamaicensis
📅 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 Lesser Scaup in El Vizcaíno Biosphere Reserve?
About 40% of visitor-days record a Lesser Scaup sighting in El Vizcaíno Biosphere Reserve, based on 331 observer-days of citizen-science data from GBIF.
When is the best time to see Lesser Scaup in El Vizcaíno Biosphere Reserve?
November has the highest sighting rate for Lesser Scaup in El Vizcaíno Biosphere Reserve in our monthly data.