Woodpeckers have enlarged the entrance hole to the box and taken the chicks. How can I prevent this happening in the future?
Site visitor Anna Beswick, who had the same problem for two successive years, used a piece of aluminium sheeting across the front of the box and further protected the entrance to the nest box with an aluminium extension tube. If your nest box is shaded, or faces north, this should not result in an excessive temperature rise within the nest box.
