Red-breasted Merganser

Red-breasted Merganser Mergus serrator

Range map

Red-breasted Merganser, Range map
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Data provided by eBird

Red-breasted Merganser

Mergus serrator


This map depicts the range boundary, defined as the areas where the species is estimated to occur at a rate of 5% or more for at least one week within each season.  Learn more

Breeding season
Jun 7 - Jul 20
Non-breeding season
Dec 21 - Jan 25
Pre-breeding migratory season
Feb 1 - May 31
Post-breeding migratory season
Jul 27 - Dec 14
Note: Seasonal ranges overlap and are stacked in the order above; view full range in season maps.
Seasons timeline
Learn more