Wrens are small but doughty

The biggest problem for wrens in winter is keeping warm, writes Dick Warner

I WAS staring idly out of the window when I spotted a movement out of the corner of my eye. I focussed on a pile of brushwood, left over from some autumn pruning, but it was a while before I spotted the wren.

It was methodically working its way through the pile, using its relatively long legs to hop from branch to branch.