A windy day. The Reed Warbler was singing his clattering song again, sitting well down in the same patch of reeds on the Long Water near the bridge. As the stems lashed about about in the gusts, he was intermittently visible and I tried to photograph him by pointing the camera at where he was and clicking away randomly. The result is not good, but I feel very lucky to have got a picture at all.

Under the parapet of the the Italian Garden, a pair of Great Crested Grebes were trying their luck fishing in the dense algae. You could see from a moving disturbance on the surface where they were rummaging, and occasionally one would emerge draped in slime.

Plenty of Swifts and House Martins. Just by the embassies where the martins nest, there was another Blue Tit nesting in a lamp post -- there are now at least three nests in these old gas lamps. Here a parent returns with a beak full of small green caterpillars to feed the nestlings.

A Coots' nest in the netting to the east of the Lido has produced three young. The grassland is covered with families of Wood Pigeons, birds that are getting commoner in the park every year. And two pairs of Gadwalls seem to have taken up permanent residence, instead of flying in occasionally from the Buckingham Palace garden as they have usually done in the past.