We have a winner!(posted 8587 days ago)Thanks James. I'll admit the bird is clearer with a bigger reproduction, but I actually worried that it was too obvious here. I suppose there's nothing like knowing the answer to help get the question right, and it probably helps to know that there is a question in the first place :-)
This was taken at my brother's wedding. Apparently the duck (a mallard hen) nests in one of the flowerpots on the hotel terrace each year. I can't imagine any self-respecting cat not being able to jump up there, but I'd guess the nest is safe from rodents and mustelids.
Semi-tame mallards are pretty tolerant of humans nearby, and she just did the typical duck thing of keeping one eye open while she slept. The kids were much more mobile, and there was really only one moment where they lined up nicely as a background.
Apologies to Shawn. Had there been a Duck Photography Forum I would of course have posted there.