Thanks Buzzard, Wurzel and David. It's certainly strange for me, running through October and November without butterflies. I'm able to enjoy the birds, though, as you say, and fortunate that Woodbridge, where I now live, lies on such a rich estuary for waders and ducks.
Two or three days ago I headed out to local heathland where small coppers were flying a few weeks ago. Despite very good weather, no coppers. I fear their season is over for 2018.
This morning, a female red admiral was hanging around the garden, obviously with intent to lay:
I left her to continue unobstructed but took a shot of one of her eggs as confirmation:
Also on the nettles this morning were this harlequin ladybird ...
... and a harlequin ladybird larva:
I imagine harlequins eat red admiral larvae and/or eggs.
Guy
EDIT
A further check a little later in the morning produced three more eggs - very sparsely distributed among the nettles - a second red admiral female, a few 7-spot ladybirds and quite a few more harlequins.
This egg was clearly not laid today, as the larva is just visible within:
Here is the second red admiral female:
Here are three more harlequins, all with slightly different ornamentation:

(the same one)
And finally, a 7-spot for comparison:
