Gunnarstenerna is a very smal archipelago with a few rocky islands situated 15 km SSE of the town Nynäshamn just 70 km S of Stockholm.
At the ilands there is lots of auks with razorbill 3000 pars as the most common but aslo Common Guillemot 300 pairs. The later are the ”invaders” that now push out Razorbills from teier old nests under rocks into dense rosebusches instead. We do our study at the most southern island named Söderskär.
Seatrack partner
Susanne Åkesson
Lund University
Ulrik Lötberg
Birdlife Sweden