And still they keep coming......
This morning Mr Duck was walking alongside our boat squawking most vociferously so I went to remonstrate with him. He explained that Mrs Duck had swum between Gecko and the bank and could not get out: the aperture was too narrow to turn round and it tapered to the bows. After I eased the boat out from the bank and released the distraught lady, the couple came to leave what I think are messages of thanks on the roof.
(I am more proficient at spoken Duckese than with the written form)