Common Merganser

Common Merganser Mergus merganser

Abundance map: Non-breeding

Common Merganser, Abundance map: Non-breeding
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Data provided by eBird

Common Merganser

Mergus merganser

Abundance: Non-breeding

This map depicts the seasonally-averaged estimated relative abundance, defined as the expected count on an eBird Traveling Count starting at the optimal time of day with the optimal search duration and distance that maximizes detection of that species in a region, averaged across the non-breeding season.  Learn more

Relative abundance
Non-breeding season
Season date range
Dec 21 - Feb 22 Learn more