This video is called Scarce Blue-tailed Damselfly (Ischnura pumilio).
They saw a scarce blue-tailed damselfly. The first time ever for this species on Rottumerplaat. The wardens suspect that the water of the lakelet where they found this insect is too brackish for reproduction.
Also, this year there was a variable damselfly; for the first time since 1995 on the island.
On 26 May 2014, wardens found a pine marten carcass on the beach of Rottumerplaat. Probably, the marten was from Lauwersoog where this species lives, and sea currents brought it to the island. Probably, the same happened to three dead hares and a dead lamb, found on Rottumerplaat.