Description Place our Copper Wren or Chickadee House Portal over the entrance hole of your nesting box, and you will not have to worry about a woodpecker or squirrel chipping away at the hole and ruining the house. We call this an inexpensive insurance policy! This portal is appropriate for both 1″ and 1.125″ hole dimensions. Heavy sheet copper with a 1.125″ center hole Comes with screws 2″ x 2″ x .15″ Made in the USA
