Our PERDIX Kestrel Nesting Box is made to a proven design field-tested by professional Ornithologists across farmland in the UK. The box is made from high quality and sustainably sourced Scandanavian 18mm plywood that is then coated in non-toxic protective Eco Shield Wood Stain. The front perching bar is made of hardwood with rounded corners.  Screwed together, our Kestrel Nesting is sturdy and built to last whether located in on a tree or within a barn or other farm building.  There are 6 screw holes in the rear to allow easy mounting.   Made in the UK.