A female Blackbird behind the Queen's Temple caught a worm easily, then dug frantically in the leaf litter. She seemed to be getting something: maybe she had found an ants' nest.
A Robin watched from a branch.
A Coal Tit sang loudly in a tree near the Serpentine Gallery.
A Chiffchaff often sings by the leaf yard, usually at the top of a tall tree. But it came down for a moment and Ahmet Amerikali got a fine close-up picture of it.
He also saw a male Blackcap singing near Peter Pan ...
... and the Blue Tit at the foot of Buck Hill, which dashed into its nest hole carrying a feather, so he waited for it to come out and got it then.
A Starling shone in the sunlight on the edge of the Serpentine.
A female Magpie by the bridge fluttered her wings and called plaintively to her mate on a branch below, who was eating a peanut. He did fly up to give her a bit.
The two young Grey Herons from the first nest on the Serpentine island are now exploring the park, and were standing on the gravel strip in the Long Water.
It does look as if the heron on the new nest has eggs. It was sitting when I arrived ...
... then got up and poked in the bottom of the nest as if turning eggs ...
... and sat down again.
A heron at the boathouse watched as a Coot investigated a clump of sprouts thrown into the lake as part of the Nowruz festival, the Zoroastrians' celebration of their New Year at the spring solstice. The Coot didn't like them and soon went away.
The Coots on the Serpentine side of the bridge were busy building up their nest. The one in the nest hadn't finished arranging a twig when its mate came back with a leaf.
On the other side of the bridge a pair of Great Crested Grebes were building a nest under a branch of the collapsed weeping willow.
In the Italian Garden fountains, the Gadwall drake who is the dominant male in the odd trio was having a rest and the female Mallard was hungry, so she joined the Mallard drake in dabbling for food.
The single Egyptian gosling on the Serpentine had eluded the hungry Herring Gulls for another day.
A female Hairy-Footed Flower Bee climbed into a minature narcissus in the Rose Garden border ...
... and a worker Honeybee collected pollen from a grape hyacinth.