Herons nesting already?

It looks as if the Grey Herons on the nest halfway along the Serpentine island are sitting already. It's impossible to be sure, but in this picture you can just see the head of a heron at the top right. If they really have started, this is the earliest nesting I've ever seen in the park.

The young heron that hangs around the Lido restaurant was fishing in the cut reeds.

At the far end of the reed bed where the landing stage is, the dominant Black-Headed Gull was in the water patrolling its territory.

A Common Gull looked neat and tidy on the edge.

A Pied Wagtail ran past.

The youngest Great Crested Grebe was at the east end of the lake fishing with its mother.

An older teenager from the nest at the bridge cruised up the reed bed on the Long Water opposite Peter Pan. It only has a faint trace of juvenile stripes now.

It took no notice when two Coots started fighting next to it.

A Moorhen rummaged through a patch of fallen leaves in the Dell, looking for insects and worms.

A single Redwing appeared in a tree in the scrubby ground west of the leaf yard. Although these are flocking birds we only see stragglers before mid-January, when the Winter Wasteland has been dismantled leaving a huge area of ruined ground in which worms have somehow survived. Then large flocks of Redwings arrive to haul them up.

On the other side of the leaf yard, a Wren perched on a dead shrub ...

... and a Goldcrest was jumping around in a yew.

A Rose-Ringed Parakeet chewed leaf buds on a tree in the Rose Garden. They are wasteful feeders, just squeezing the sweet sap from the bud and spitting it out before going on to the next bud. A flock of parakeets can completely wreck a tree.

A Robin paused under the tree on its way to look for worms in the shrubbery.

The Little Owl at the Round Pond didn't appear till the light was failing.