Use this .021 thick genuine copper plate to prevent squirrels, mice and woodpeckers from chewing/drilling and enlarging the opening on any nestbox with an existing 1-1/2" opening.
Erva
Use this .021 thick genuine copper plate to prevent squirrels, mice and woodpeckers from chewing/drilling and enlarging the opening on any nestbox with an existing 1-1/2" opening.