Red-breasted Merganser
Mergus serrator
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderAnseriformes
- FamilyAnatidae (Anàtids)
- GenusMergus (Typical Mergansers)
- SpeciesMergus serrator (Red-breasted Merganser)
Closest Relatives at Channel Islands National Park
Common Merganser
Mergus merganser
Mallard
Anas platyrhynchos
Ruddy Duck
Oxyura jamaicensis
Gadwall
Mareca strepera
Surf Scoter
Melanitta perspicillata
Northern Shoveler
Spatula clypeata
Bufflehead
Bucephala albeola
Anas cyanoptera
Spatula cyanoptera
Lesser Scaup
Aythya affinis
Canada Goose
Branta canadensis
American Wigeon
Mareca americana
Ring-necked Duck
Aythya collaris
📅 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 Red-breasted Merganser in Channel Islands National Park?
About 10% of visitor-days record a Red-breasted Merganser sighting in Channel Islands National Park, based on 719 observer-days of citizen-science data from GBIF.
When is the best time to see Red-breasted Merganser in Channel Islands National Park?
December has the highest sighting rate for Red-breasted Merganser in Channel Islands National Park in our monthly data.