Blue tit foraging on pollard oak branch
oil on canvas, 1010mm x 760mm
Private collection
The approach was Cezanne inspired. I painted
these without glasses (I'm near sighted) to help me attend to the
colours - one colour world of the outer leaves of the canopy and
different colour world within the lower branches.


Private collection
Over the winter, while I was working on this
painting, Dr Chris Gibson from Natural England came to the tree and
we spent an hour walking round it while he pointed out many things
that I had seen but not noticed over the past two years.

One of them was in front of my nose, its colours
are observed in both the colour studies above.
Chris is showing what a pollard branch does -
there are several behind him. Oak branches have a zig-zag
growth pattern that evolved to fit leaves into light-catching
spaces in the canopies of competing trees. You can see this pattern
clearly in the top left of the main picture above. But if an oak
loses a low branch, it conserves energy by shooting out a pollard
branch - leaves appear only at the tips, where the sunlight
is.
Learning this, I noticed that the pale yellow
greens in the oil studies and photos I used belonged to pollard
branches, and one of them became a focus of attention in the final
painting. Without Chris's visit this would not have happened and
the attention in the image would have been dispersed, as in the
studies.
This is an example of creative, visual
collabouration between art and science.