In the last two years I hadn't seen them in this part of Tejo (Tagus) river. But, this year, it seems that they decided to come back and stay for a while.
This time, there were about a hundred of them! They usually stay in the middle of the river, where they feel safe... But this time a bunch of them came rather near me. I hope they stay with us a few more days:)
These photos were taken with my new Fuji Finepix S8000fd.