Sabine's gull treated as comprising a monotypic genus; it is only placed within the genus "Larus" when the genus is enlarged. The black bill and notched tail are almost unique within the gulls, as they are shared only with the swallow-tailed gull of the Galapagos. On the basis of this the two species were often thought to be each other's closest relatives, a hypothesis ruled out by a number of behaviour and ecological differences. Mitochondrial DNA studies confirmed that they are not closely related, and the closest relative of the Sabine's gull is now thought to be the ivory gull, another Arctic
Work Is a Four-Letter Word Work Is a Four-Letter Word Work Is a Four-Letter Word (also known as Work Is a 4-Letter Word) is a 1968 British satirical comedy film starring David Warner and Cilla Black, in her only acting role in a cinematic film. The film, which directed by Peter Hall, was not well received by critics even though it was based on the award-winning play "Eh?". It also marked the acting debut of Elizabeth Spriggs. Everyone is employed by the ultra-modern DICE Corporation but Valentine Brose (Warner) would rather stay at home to tend his psychedelic mushrooms. However, his bedroom is too small