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2 photographs

Red-breasted Merganser

Mergus serrator

eBird code: rebmer

Species Profile

Species notes

The red-breasted merganser is a duck species that is native to much of the temperate to subarctic Northern Hemisphere. The red breast that gives the species its common name is only displayed by males in breeding plumage. Individuals fly rapidly, and feed by diving from the surface to pursue aquatic animals underwater, using serrated bills to capture slippery fish. They migrate each year from breeding sites on lakes and rivers to their mostly coastal wintering areas, making them the most frequent species in the genus Mergus to frequent saltwater regularly. The worldwide population of this species is stable, though it is threatened in some areas by habitat loss and other factors.

Scientific nameMergus serrator
FamilyDucks, Geese, and Waterfowl
OrderAnseriformes
Conservation statusLeast Concern
Wingspan (m)0.87
Mass (kg)1.135

Photo Collection Overview

Photo capture coverage for this species.

Latest captureFebruary 01, 2026
Earliest captureFebruary 01, 2026
Locations2 tagged

Image Details

Metadata extracted from the camera files.

Red-breasted Merganser photograph 1
Captured
Camera
Canon Canon EOS R7
Lens
RF100-500mm F4.5-7.1 L IS USM
Exposure
1/1250 s
Aperture
f/7.1
ISO
250
Focal length
500 mm
Dimensions
4841 × 3230
Megapixels
15.6
File size
3.4 MB
Red-breasted Merganser photograph 2
Captured
Camera
Canon Canon EOS R7
Lens
RF100-500mm F4.5-7.1 L IS USM
Exposure
1/1600 s
Aperture
f/7.1
ISO
500
Focal length
500 mm
Dimensions
5539 × 3696
Megapixels
20.5
File size
5.8 MB