Two pairs of Grey Herons are still building nests on the Serpentine island. One pair, in the smaller nest, had just been mating when I arrived. Then one of them took off and went down to the ground to collect more twigs.
A heron from the other nest was there already doing the same, but they kept far enough apart to avoid a fight. It is surprising how these big birds with huge wings manage to fly in and out of trees, but the fact that they can leap vertically into the air and fly very slowly is clearly a help.
In the Diana fountain enclosure, the usual pair of Herring Gulls were searching for worms, doing the usual worm dance, pattering their feet to imitate the noise of raindrops to bring up worms. In fact it was really raining, but not very hard. They were joined by a pair of Lesser Black-Backed Gulls, and one of them copied the worm dance, not something that Lesser Black-Backs usually do.
It only did short bursts of dancing, alternating with pecking the ground. Different worm-charming techniques may work equally well.
A pair of Mute Swans were wandering around on the steep grass bank behind the Lido waterfront.
A pair, possibly the same one, built a nest here last year under the concrete steps. It was a silly place to choose and was soon abandoned.
A large flock of Long-Tailed Tits was moving through the trees along the south edge of the Serpentine. Here is one of them hanging upside down from a twig in the ceaseless quest for insects.
The Maned Goose was still on the edge of the Round Pond, resting on one leg and half asleep. When an Egyptian Goose came too near, the irritable bird woke up just enough to threaten it before dozing off again.
An Egyptian on the edge of the pond turned downwind, allowing its feathers to blow about untidily.
There was a party of Shovellers under the bridge, allowing a top view.
You can see both its eyes from above. Most ducks can see directly overhead, a useful aid to survival on open water when there are predators about.
The male Tawny Owl was back in his usual place on the nest tree.