By Gardeners' World on 19/07/2011 11:51:32
in a tree or building away from predators, strong sunlight and wind. A north-east facing spot is best.1.5m x 15cm x 1.25cm piece of untreated, sawn timber20cm x 2.5cm nails, 3cm x 2.5cm self-tapping screwsDrill and 25mm, 28mm or 32mm wood drill bit (see