A Herring Gull on the Serpentine had found what seemed, improbably, to be a square sample of carpet.
Whatever it was, the other gulls wanted it too.
The Mistle Thrushes on Buck Hill, having run out of rowan berries, were on the grass looking for worms. This one found two in five minutes.
A Jackdaw was also successful near the Henry Moore sculpture.
A flock of Long-Tailed Tits passed by on their endless quest for insects.
A Goldcrest was with them, the first time I have seen this tiny bird hunting with the flock. It wouldn't come out to be photographed.
A Pied Wagtail was also looking for insects on a floating carpet of leaves near the Dell restaurant. It was light enough to be able to stand on the leaves without sinking them.
The hole in the oak tree northwest of the Albert Memorial, which had Little Owls in it earlier this year, was occupied by a pair of Ring-Necked Parakeets. The owls had been pushed out by Stock Doves, which the parakeets must have evicted.
The Great Crested Grebes have abandoned their silly attempt to build a nest under the willow tree near the bridge. But they are still fishing there.
The Black Swan was at the Diana fountain landing stage, passing the time by harassing the Mute Swans.
When I was coming back along the other side of the Serpentine the Black Swan saw me and came over for a second biscuit. A Carrion Crow sneaked up behind him with the intention of pulling his tail, but the swan noticed in time.