Degree of Threat: Low
Comments: Potentially vulnerable to oil spills, especially when concentrated in large flocks in non-breeding season. Small numbers killed by hunting or entangelement in fishing nets (Madge and Burns 1988), though potentially less susceptible to harvest than other species (Kehoe 1996). In the Atlantic Flyway, winter habitat has been affected by urbanization and industrialization, but effect on populations is unknown (Kehoe 1994).
No one has provided updates yet.