Update: They returned to our garden this morning - all 14 of them. Last night they had problems getting out of the pond as the water was low (mostly ignoring two planks put there for frogs) so I built up some brick steps and this morning they gratifyingly used them straight away. They turned up, jumped in the pond and then swarmed back up the steps. After feeding, they've now cleared off.
It's been several years since our last family appeared and then 12 of 13 reached adulthood. We mustn't get too attached to this one as we are bound to lose some ducklings. We have regular patrols by sparrowhawks in recent years. Our own cat ignores them (a mother duck can be very aggressive and the last one beat him up) but there are others around.
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