bird portrait 2

my next picture gets the vote because it looks almost like a painting.
i love the reflections of the reeds in the water and the duck kindly stayed fairly still for me, and in just the right place.
it's such a peaceful scene, it makes me feel better each time i look at it.
don't know what species this is, though, unfortunately. 
someone suggested it was a muscovy duck, but please let me know if you recognise it.