Two's Company.

I suppose if you are a tree, you quickly get used to the idea that you'll not be travelling about a great deal. In which case, choosing your neighbour becomes fairly important.

These two, which I spotted as I was cycling along, look meant for each other. I also think there might be a slight hint of "Pac Man" about them, for those who are familiar with the game!

Needless to say, the light levels today were abysmal - half an hour @ f8 all directions!