The Great Crested Grebes in the nest under the bridge have now hatched at least one chick. This is the third successful nest this year, all in a short space of time.

There is a large family of Wrens on the shore next to this nest. The young ones were hopping around all over the bushes, calling loudly for food.

The Grey Heron at the Serpentine restaurant, crowded off the tables by the throng of people, was on the roof looking hungrily at some pigeons. No doubt it has seen the pigeon-eating Lesser Black-Backed Gull at work. But I don't think it stands a chance of catching any.

The Kestrel was back on Buck Hill, hunting grasshoppers.

She is moulting, one primary at a time in each wing, and there is also a gap in her tail feathers, so she is not looking her immaculate best. After a while she found a thermal, circled up in it to a great height, and glided off to the west, perhaps to Kensal Green Cemetery where the wild areas of long grass offer larger prey.

But there was no shortage of grasshoppers and crickets here. This is a Meadow Grassphopper, Chorthippus parallelus.

Not far away a Small Skipper butterfly, Thymolicus sylvestris, was sunning itself on a patch of ragwort.

Reed Warblers were showing occasionally in the reed bed near the bridge.

The male Little Owl was preening himself in this year's nest tree.

The two owlets were seen together, though I couldn't find them when I went by.