I found out

Mergus merganser (female)
The Common Merganser, Goosander
male here

The goosanders and some ducks seemed to have moved to the Water of Leith at Saughton Park since Craiglockhart Pond froze over... 'though no sign of the bevy of swans yet?

Spent an hour or so wandering around Saughton Gardens waiting for Meatbag to be groomed. M has discovered cocktail sausages as treats and didn't want to come home after such luxury
another trip to the medical centre, turns out the thumb may have a wart and not infected! ewwww
an afternoon of chores and backblipping