BirdLife Sverige (known as the Swedish Ornithological Society, Sveriges ornitologiska förening, or SOF before 2014) is a Swedish ornithological society founded in 1945 and a BirdLife partner. It currently has 11,000 members, 24 regional branches, and a staff of 24. The main three goals of the organization are: bird conservation; to carry out investigation and documentation; to promote interest in birds and birdwatching. BirdLife Sverige develop an electronic, internet-based bird reporting system called Artportalen, used by thousands of Swedish bird watchers to report sightings.
https://en.wikipedia.org/wiki/BirdLife_Sverige