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great skua | 30 July 2025 |
A great skua is an impressive big seabird, which behaves as a bird of prey. While we are studying geese, a skua steals the show. | |
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We have placed cameras on Storholmen in the area of goose nests to determine goose grazing pressure.
One camera registered a lot of activity by a pair of great skuas. One of the breeding pair has been marked for the program SEATRACK. It caries a colourring yellow NC and a GPS logger. With this program, we want to follow seabirds to learn about their winter distribution at sea. |
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| The great skua is hunting for other birds. On the island we find several carcasses of both common eider and barnacle geese. I have seen them hunting for moulting barnacle geese. They work as a pair. First in dividing a victim from the flock and than they land on the back of the victim, until they fall off and the partner takes ovcer immedeately. Until the goose has drowned. A gosling is easier prey, but the parents defend succesfully. And suddenly a young of the great skua appears in front of the camera. The young is also ringed with a colourring: yellow JZ. |
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