An ‘increase year’ was expected for the lemmings and other rodents in Ammarnäs. In such years, rodent populations slowly recover from a crash and build up towards a next peak. At such intermediate rodent densities, Long-tailed Skuas in Ammarnäs usually breed at least in the best area: Raurejaure.
Today we (Morrison Pot and I) crossed the tree line in Ammarnäs for the first time this season. After only about ten minutes the disappointment already sank in: this was going to be another non-breeding year for the Long-tailed Skuas. The second in a row, thereby repeating the pattern of 2012/2013. A pair was sitting quietly, occasionally picking some berries or insects. At this date, one of the partners should be incubating an egg…
The good news is that we resighted several colour-ringed skuas and all were still carrying their geolocators. Two birds have apparently switched partner, meaning two ‘famous’ birds are now missing: KJ, known for its extremely aggressive nest defense, and KM, a bird that we used to see on every visit to Raurejaure, as it bred at the ‘entrance’ of the area.
Another promising observation is that of a male Dunlin carrying a geolocator! Hopefully we will be able to recapture this bird. This bird is part of a big circumpolar effort to track the migrations of all subspecies of Dunlin – there are many!