A very small Robin chick was sitting in the scrubby grass in front of the reed bed near the bridge. At first I thought it had fallen out of a late nest and was stranded, but then it showed it was all right by flying away.
Correction: Tom says it's a Wren. Hard to tell with tiny chicks but there does seem to be a hint of a white stripe above the eye.
A Wren was making a tremendous noise in the Dell -- it wasn't clear what it was protesting at, as the only other bird in sight was a harmless Great Tit.
A large flock of Long-Tailed Tits passed through the trees at the bottom of Buck Hill. They had several Blue Tits and, I think, a Chiffchaff tagging along with them.
There were Mistle Thrushes all over the grass on Buck Hill.
Close up, most of them are looking tatty. But this is a good sign, as it shows they have been nesting, and they will be as smart as ever in a month or two.
One of the Little owlets near the Albert Memorial posed obligingly on a branch of the usual horse chestnut tree.
The Tufted duckling was busily diving on the south side of the Serpentine.
Flocks of Greylag Geese were flying up and down the lake.
The Black Swan and the adopted cygnet were working their way along the edge, where there were plenty of Sunday visitors to feed and photograph them.
Near the island, a Great Crested Grebe neatly dodged a demanding chick that had just been fed and gave a fish to another one.
There are five Moorhen chicks in the Dell. You can just see the fifth among the plants at the far right.
They can swim quite fast with their big unwebbed feet. The action is the same as running, and works surprisingly well.