Noticed last night walking the dogs, with the lights on the trees suddenly looked like they had leaves on again. But from a different angle, you could see it was just around the lamp head. The cold light of day made it all clearer.

Will have to pay attention around other streets too, before the rest drop. Seems only to be the plain trees that have kept them, the horse chestnuts etc haven't been 'affected' so to speak.

Have tried a few Google searches for the answer, but evades me so far.