The Little owlets were together in the chestnut tree, and one was preening the other.
Adult mates also do this.
Their father was watching them from a comfortable distance.
There were two young Magpies in the willow tree next to the bridge.
On the other side of the bridge, the Mandarin duckling was taking it easy in the shade of the railings. A few teal-blue feathers are beginning to appear. This doesn't necessarily mean that it is a drake, since females have blue secondaries.
There is a new Canada Goose family on the south side of the Serpentine.
The Greylag family with four goslings were stepping out a few yards away.
There are little Egyptian Geese all over the place, and it's hard to say how many broods there are. Casualties are high, but they more than make up for it in sheer numbers.
The Mute Swan family on the Long Water were cruising around near the Italian Garden.
The Black Swan was asleep next to the bridge, but woke up when two Mute Swans started fighting next to him, and looked around irritably.
The Great Crested Grebes from the nest on the island were feeding their chick, which is growing well.
This is the mate of the pigeon-killing Lesser Black-Backed Gull, who shares his kills. Her bill and legs are not as bright yellow as his.
A Buff-Tailed Bumblebee was browsing on an ornamental allium flower in the Rose Garden.
I wonder whether the nectar tastes of onions.