But at lunchtime the male owl came out and perched on a twig ...
... in the classic position of the Little Owl on an Athenian tetradrachm coin of 450 BC.
A Starling beside the Serpentine sang loudly for no reason except that it was a sunny day.
There's an ants' nest in the grassy bank at the back of the Dell restaurant. Starlings regularly comb the grass around it looking for straying ants.
Virginia sent an elegant picture taken yesterday of a Grey Wagtail preening on a rock at the top of the Dell waterfall ...
... and this fine shot of a male Chaffinch was taken near the bridge by Ahmet Amerikali.
The Jackdaws have really moved into the area around the Henry Moore sculpture. Seven of them came to be fed this morning.
A Herring Gull beside the Serpentine ate a mysterious object. It was under an oak tree, and I think it may be a deformed acorn caused by infestation with a gall wasp.
The Moorhens in the Dell and two of their chicks were feeding enthusiastically behind some plants in the Dell, though I couldn't see what they had found.
The mystery was solved when a hand appeared behind a bush and tossed them some mealworms. It was the female gardener who looks after the Dell so devotedly, and who also maintains a couple of feeders for the small birds. I didn't know she also feeds the Moorhens.
Two Moorhens were having a fight at the island. They fight in the same way as Coots, but less often.
One of the three teenage grebes from the island was fishing with its mother, and no doubt picking up some useful tips on technique.
The Red-Crested Pochard with the Mallard mate was in the Italian Garden as usual, along with the spare Mallard drake who has attached himself to the pair.
When the pochard first got together with his mate, he fed in the normal style for his species, by diving. But I haven't seen him diving recently, and he seems to have taken up the habit of upending like his companions. If the algae are near enough the surface, this saves effort.