Keep unwanted birds from entering your birding station and protect your martin house entrance when not in use with this handy Troyer's Door Shield.

• Place this handy plastic shield over the entrance to your Troyer Tunnel (not included) to deter predators
• Alternately, use the shield to help keep fledglings in place during nest checks
• Door shield is polyethylene with UV protection, for lasting quality
• 1.5" high shield provides ample height to protect your tunnel entrance
• Employ shield to safeguard and enhance your existing tunnel setup

Dimensions: 5.25"L x 1.5"H
Mounting: place over entrance to tunnel (not included)
Construction: plastic