The Black Guillemot is a small alcid with striking white wing patches and brilliant red mouth lining and feet. Unlike most alcids that winter far offshore in large flocks, it tends to stay near shore year-round, often nesting in rock crevices and harbor structures. Its piping, whistling calls are distinctive along rocky North Atlantic shores.
Best time to see a Black Guillemot
The best time to see a Black Guillemot is June–August, when about 66% of U.S. sightings happen, based on 2,235 research-grade iNaturalist observations.
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Recent Black Guillemot sightings near you
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