A new site for a Great Crested Grebes' nest

A Coal Tit perched in a blossoming cherry tree at the back of the Albert Memorial.

This Chaffinch can usually be found there.

The Tawny Owl was having trouble with Jackdaws persecuting him, and had retreated into his hole.

The Jackdaws tired of making a racket, so he came out again to enjoy the sunshine and they left him in peace.

A female Magpie fluttered in front of her mate, imitating a young bird begging for food. She was making sure that he will feed her when she's sitting on the nest.

A Carrion Crow drank rainwater from a little pool in the trunk of the yew tree on the corner of the Dell.

A Wood Pigeon drank from the lake. Most birds would rather drink water from puddles rather than the borehole water in the lake.

Both the young Grey Herons were back in the nest. I think their parents have stopped feeding them here, but it's a cosy and familiar place for them.

The Great Crested Grebes on the Long Water had brought their chick to the fallen poplar at the Vista, a good fishing spot, to make feeding it easier.

The plastic buoys marking the edge of the swimming area at the Lido often have Coots' nests in the gaps, but this is the first time I've seen Great Crested Grebes trying to nest here. The nest is the usual soggy grebe mess but strong enough for the pair to mate on.

When I passed by later a Coot had claimed the site. One of the grebes was calling for his mate so that they could evict the Coot.

Coots can build a nest out of any available material, including plastic bags and bottles. This well built nest on the dead willow near the Italian Gardens is made of reed stems which were lying around after the work on the Mute Swans' nesting island.

The swans nesting east of the Lido were busy making a nest in their own way, which means ripping down every plant in sight and making a haphazard heap. The male swan had difficulty getting a big stick through the gap in the netting.

Two Egyptians washed on the Serpentine. They are the pair with the blond male, whose goslings were sadly killed by eating poisonous plants in the Triangle car park.

I've spoken to Drew Love-Jones the Wildlife Office about this danger, and he is investigating. I think the plants are probably castor beans that have sprouted from suckers after a plant was used as the centrepiece in a floral arrangement a few years ago.

A pair of Mandarins washed and preened on the other side of the lake. The drake's magnificent plumage needs a lot of maintenance.

The dark Mallard on the Serpentine has a male companion but this one on the Long Water, which is certainly a drake, has a mate.

Wallflowers are coming out in the Flower Walk, though they have been blasted by last night's ground frost. They are popular with bees, and attracted a Southern Cuckoo Bee ...

... and a Hairy-Footed Flower Bee.