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The jelly lichen was thriving this morning, having perked up with the overnight rain. Sadly, at that time, Cortana was not playing the game and none of my fifteen snaps were in focus.

While by this afternoon, the jelly lichen had rather dried out, but Cortana was back on the case with all five snaps in focus, with one included left. Perhaps I should put her in touch with the people who are building the adaptive metalenses discussed at reference 3, lenses which might more or less eliminate the need for unreliable moving parts in the cameras in telephones.

I was last moved to notice the lichen in the autumn, so presumably, here in Epsom, a spring and autumn thing.

As is the egret, back in the stream down Longmead Road this morning, last noticed back in November, at about the same time as the lichen. So up north somewhere for the summer, down south somewhere for the winter. Twice yearly pit stop at Longmead Road en-route.

Flock of redwings still present. Plus the usual contingent of sea birds, crows, pigeons and starlings.

Reference 1: http://psmv3.blogspot.co.uk/2017/09/autumn-visit-and-tweet.html.

Reference 2: http://psmv3.blogspot.co.uk/2017/11/jelly-lichen.html.

Reference 3: Adaptive metalenses with simultaneous electrical control of focal length, astigmatism, and shift – Alan She, Shuyan Zhang, Samuel Shian, David R. Clarke and Federico Capasso – 2018. With support from the USAF.