Black Guillemot
Cepphus grylle
Conservation Status
Least ConcernAves · Charadriiformes · Alcidae
About
The black guillemot or tystie is a medium-sized seabird of the Alcidae family, native throughout northern Atlantic coasts and eastern North American coasts. It is resident in much of its range, but large populations from the high arctic migrate southwards in winter. The bird can be seen in and around its breeding habitat of rocky shores, cliffs and islands in single or smalls groups of pairs. They feed mainly by diving towards the sea floor feeding on fish, crustaceans or other benthic invertebrates. They are listed on the IUCN red list as a species of least concern.
Fun Fact
Black Guillemots turn from all-black to white-bodied between summer and winter, with only their wings remaining dark year-round.
Quick Facts
Habitat
Distributed in the boreal, low arctic and high arctic regions of the north Atlantic and arctic oceans and breeding between 43° and 82°N.
Diet
To be updated
Lifespan
To be updated
Threats
- Habitat Change
- Human Disturbance