The male Cetti's Warbler, who has only been singing occasionally in past days, started singing loudly and often in his usual place in the shrubbery on the west side of the Long Water near the bridge. I went to investigate, and there was a whole family, I think both adults and two young ones, dashing about in the bushes. As usual they stayed very much in cover, but I got one distant poor-quality shot. Here it is, the best I could manage with these elusive birds.

There was a Herring Gull with a plastic colour ring on the posts near Peter Pan. In these cases one always hopes that the ring will be from some exciting distant place, but it turned out to have been put on by the North Thames Gull Group.

Nevertheless, it may turn out that there is a history of wandering. It is a third-summer bird, that is, two years old.

The pigeon-eating Lesser Black-Backed Gull, on the left of this picture, and his mate were in their usual place on the roof of the Dell restaurant, looking for a pigeon in a place where they could catch it. This is harder than it sounds, as Feral Pigeons have tremendous acceleration from a standing start, and some planning is needed.

A Magpie was enjoying a bath in the little pool at the top of the waterfall in the Dell.

There were four Mistle Thrushes in the rowan trees on Buck Hill. They have been seen in quite large numbers in the past few weeks. Probably they are resident in the park and have bred, and the 37 Mistle Thrushes I saw passing over recently, which would have been migrants arriving from Europe, have not stayed in the park.

The fearless young Pied Wagtail was ranging all round the Serpentine, and landed almost at my feet three times in different places.

The three Great Crested Grebe chicks from the nest halfway along the Long Water are also very mobile now, wandering away from their parents, both of whom were feeding them from time to time, producing a mad rush across the lake to be first to the fish.

The Moorhens who nested in the Long Water reed bed near the bridge had brought their three chicks out on to the Serpentine. They came over constantly for bits of digestive biscuit to give the chicks.

The male Little Owl was in the maple tree near the leaf yard.

I couldn't find either of the owlets.