As part of our field work in BioBasis Zackenberg we monitor the northern collared lemming. This is done by counting the winter nests in a certain area every year. The nests are under the snow but we count them after they snow is gone. This year the number of nests were rather large after years of extremely low. In a few of the nests there was indication that an ermine (also known as stoat) had killed one or more lemmings and taken over the nest. They use the fur of the lemming to line the nest. Rarely, we find a full skeleton as above.