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 El Vizcaíno Biosphere Reserve
Common Merganser
Mergus merganser
Northern Pintail
Anas acuta
Lesser Scaup
Aythya affinis
Brant
Branta bernicla
American Wigeon
Mareca americana
Anas cyanoptera
Spatula cyanoptera
Surf Scoter
Melanitta perspicillata
Northern Shoveler
Spatula clypeata
Ruddy Duck
Oxyura jamaicensis
Blue-winged Teal
Spatula discors
Redhead
Aythya americana
Bufflehead
Bucephala albeola
📅 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 El Vizcaíno Biosphere Reserve?
About 19% of visitor-days record a Red-breasted Merganser sighting in El Vizcaíno Biosphere Reserve, based on 163 observer-days of citizen-science data from GBIF.
When is the best time to see Red-breasted Merganser in El Vizcaíno Biosphere Reserve?
April has the highest sighting rate for Red-breasted Merganser in El Vizcaíno Biosphere Reserve in our monthly data.