An unexpected visitor

With the lodges empty for a few short weeks, the ducks have been regular visitors to the house. They're obviously missing the attention that they receive from our guests (and we suspect that they are looking forward to Christmas, when they can visit each lodge one by one, filling their tummies as they go!) and so are demanding food from the garden.
Word had obviously spread in the duck community about Forda, and we were delighted to welcome a newcomer (pictured) who came and spent a few days here (on holiday perhaps?)
We've not been able to identify him from any of our bird books, and have concluded that he must be a hybrid of some sort. If anyone has any ideas as to his breed, we'd be most interested to hear from you! But, whatever he is, he seemed to enjoy his stay here.