Migration & timing
Black Guillemot in New Hampshire
There aren't yet enough observations of Black Guillemot in New Hampshire to describe its timing with confidence.
Sighting 1 observations in New Hampshire
Check back as more observations come in, or explore Black Guillemot across North America.
Black Guillemot elsewhere
More birds in New Hampshire
Data: iNaturalist research-grade observations (CC0 / CC-BY), via GBIF. Excludes eBird.