skua
Concise Oxford English Dictionary © 2008 Oxford University Press:
skua /ˈskjuːə/
▶noun a large predatory seabird, chiefly brown, which pursues other birds to make them disgorge fish. [Catharacta skua (great skua), Stercorarius parasiticus (Arctic skua), and related species.]
– origin C17: mod. L., from Faroese skúvur, from ON skufr (appar. imitative).
'skua' also found in these Oxford entries:

