I made a short 4 day visit to the Lake Annsjon area in central Sweden in early June. Highlights included Three-toed Woodpecker, Siberian Jay, Red-necked Phalarope etc.
Remarkably, the weather was hot & sunny for the first 2 days, but had reverted to type with rain and temperatures of little more than 6 C on my final day!
There is a full illustrated report on my website at http://www.stephenburch.com/trips/sweden08/sweden08.htm
Stephen