A Herring Gull was amusing itself with a crayfish on the edge of the Serpentine, maybe playing with its food, maybe just playing. First it dived to pick the crayfish out of the shallow water.

When it had brought it to the surface ...

... it dropped the crayfish, spread its wings and jumped into the air ...

... and repeated the same move over and over again.

I don't know whether a Herring Gull can dismantle and eat a large Turkish crayfish -- or, if it can, whether it would consider it worth the hard work when there was easier food around. When all the crayfish were killed in 2008 by an accidental release of chemicals from the Diana fountain, the big gulls certainly ate them, but only after a couple of days when they had begun to disintegrate.

At the Italian Garden, a Little Grebe was dealing with another challenging meal, a substantial perch.

I know it was a perch because you could see the spines on its dorsal fin. The bird had to give the fish a hard shaking to stun it, and then turn it round so that it could swallow the fish head first and avoid the spines sticking in its throat.

The pair of Egyptian Geese flying around the tops of the dead trees were disturbed in a rival, which was repelled with a noisy display.

Just as an Egyptian Goose has not decided whether it's a goose or a duck, their call is intermediate between a honk and a quack. The females make more racket than the males.

The Tawny Owls were still in their usual place in the beech tree, occasionally half opening an eye to exchange a sleepy but affectionate glance.

Soon they will leave this place and start nesting, and the female won't be seen till March, while the male stands guard over the hole that leads to their nest in the horse chestnut tree.