A Wren perched on an accidentally seeded rose bush beside the Long Water, now in unseasonal bloom.

A Long-Tailed Tit searched for insects in a gorse bush near the bridge.

A Rose-Ringed Parakeet was chewing rotten wood off a dead tree. I've never seen this behaviour before.

Starlings and Magpies went through a bin at the Lido restaurant. The larger birds can pull things out, making a mess that the restaurant staff have to clear up.

Two Carrion Crows were oddly harmonious in digging something up near the Dell. They must be a couple.

Two Grey Heron nests on the island were occupied. This is the smaller one, which will need building up if it's to be used.

A Black-Headed Gull had found a mysterious object in the Serpentine which it seemed to think was edible. It seemed too large for a hoverfly larva, and lacked the trailing siphon that these larvae have.

But this was certainly a hoverfly larva.

There are a lot of crayfish in the lake, quite close to the edge, and they don't seem to be very active. We may be seeing one of the mysterious mass die-offs that seems to affect these Turkish Crayfish, and which have apparently also completely eliminated the Signal Crayfish we used to have. Both are invasive species, and there aren't any native crayfish here. 

The Herring Gulls are catching them enthusiastically.

But the crayfish have to be taken ashore to dismantle them, and that causes a problem with harassment from hungry crows. Here a crow finally succeeded in grabbing the gull's meal.

A young Herring Gull dredged up bits of paper and cardboard, a stone and a stick. None of them seemed to satisfy it as a thing to play with, so it dropped them all.

The Goldeneye is still at the east end of the Serpentine. Since it was first seen on 27 November its adult black and white pattern has developed slightly.

There is a single female Pochard on the Long Water, and I also saw two drakes. Someone else has reported four in all, but that's a long way below the sixty-odd we had a couple of months ago.

There was no sign of a White-Fronted Goose either in the Diana fountain enclosure or at the Round Pond.

On the Round Pond, the Black Swan was again following a male Mute Swan around.