Great black-backed gull stomach contents of great black-backed gulls was made up of birds, while a further 17% of stomach contents was made up of tern eggs alone. Adult or fledged juveniles of various bird species have also been predaceously attacked. Some fully-fledged or adult birds observed to be hunted in flight or on the ground by great black-backed gulls have included "Anas" ducks, ruddy ducks ("Oxyura jamaicensis"), buffleheads ("Bucephala albeola"), Manx shearwaters ("Puffinus puffinus"), pied-billed grebes ("Podilymbus podiceps"), common moorhens ("Gallinula chloropus"), terns, Atlantic puffins ("Fratercula arctica"), coots ("Fulica" ssp.), glossy ibises ("Plegadis falcinellus"), rock pigeons ("Columba livia") and even predatory birds
Coat of arms of Saba Coat of arms of Saba The coat of arms of Saba was established in 1985 by the island council of Saba, when it was still part of the Netherlands Antilles. It remained the coat of arms of Saba after the dissolution of the Netherlands Antilles and the subsequent change of Saba's constitutional status into a special municipality of the Netherlands in 2010. It consists of a shield with an Audubon's shearwater ("Puffinus lherminieri") (the national bird) on top, flanked by Saban cabbage (a historically important local foodcrop). In the middle is a representation of the island itself, with a fish,