I visited Öland and the Bird Observatory Ottenby this weekend. Birds are migrating north now. And as it was very misty, rainy and cold this weekend they had a tough trip coming up from Europe to Sweden, across the southern part of the Baltic sea.
click to enlarge
Rödhake - Erithacus rubecula - European Robin, NF Photo 100515 at Ottenby
Somebody said this is a Lövsångare - Phylloscopus trochilus - Willow Warbler
But looking in the book I think it might be a Grönsångare - Phylloscopus sibilatrix - Wood Warbler
If you know for sure, please tell me. But whatever species, both are cold. :(