Heermann's Gull

Heermann's Gull Larus heermanni

Range map

Heermann's Gull, Range map
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Data provided by eBird

Heermann's Gull

Larus heermanni

Range

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

Occurrence
Year-round
Breeding season
Feb 22 - May 17
Non-breeding season
Jul 20 - Nov 2
Pre-breeding migratory season
Nov 9 - Feb 15
Post-breeding migratory season
May 24 - Jul 13
Note: Seasonal ranges overlap and are stacked in the order above; view full range in season maps.
Seasons timeline
Learn more