Status
Historically, the Great Black-backed Gull was harvested for its feathers, which were used in the hat-making trade, and this species was removed from large parts of its range as a result of this exploitation. Today however, its adaptability to human presence and the use of urban environments as artificial nesting sites has resulted in the Great Black-backed Gull rapidly increasing in number and range. It is now a widespread and abundant species in its range and its numbers have increased to such high levels in some areas that it is often seen as a pest species, especially near airports where it risks collisions with airplanes, and in some coastal areas where it predates upon and competes with rarer seabirds such as Atlantic puffins. Although there are no known major threats to the Great Black-backed Gull, high levels of toxic pollutants, which are ingested with contaminated prey, are often found in individuals and eggs, reducing reproductive success. Breeding is also interrupted by human disturbance, which can lead to eggs being abandoned, leaving them vulnerable to exposure and predation. The great black-backed gull is additionally hunted for sport in Denmark.
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