The Great skua is the largest gull in Svalbard - and perhaps also the largest "bird of prey". It is a kleptoparasite, which in practice means that it survives by forcing other birds to drop their prey or regurgitate their catch. However, it also takes eggs and kill fledgelings of other bird species. For an adult Great skua, there are no natural threats, except eagles - which i reality are never found on Spitsbergen... These two skuas take off in tandem. However, unlike the illusion that one bird stands on top of the other (as it seems), the right one is slightly in front of the one to the left.