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Square copper plate with circular cut out comes with four screws. Used with bird house entrance
Five 2 by 2 copper portals for bird houses and nest box entrances with varying size holes: 1-9/16", 1.5", 1.125", 1.25", and 1"
Square copper plate with circular hole comes with screws for use with bird nest boxes
Demonstration of use of a copper portal on a bluebird nest box

Copper Portals

Regular price $3.25 $0.00
Help maintain entry holes on your birdhouses. Copper portals prevent predators from chewing or pecking around entry holes to enlarge them. Portals can also be used to repair a chewed entry hole (so long as there's enough wood left to attach the plate), or reduce the size of an existing entry hole.
  • Four screws are included
  • 2" square plate 
  • Available in 5 different entry hole sizes:
    • 1" for House Wrens
    • 1-1/8" for Chickadees
    • 1-1/4" for Nuthatches, Tufted Titmice
    • 1-1/2" for Eastern Bluebirds, Carolina Wrens, Tree Swallows
    • 1-9/16" for Western & Mountain Bluebirds

We also carry Cedar Predator Guards with Copper Portals in 1-1/2" entry size for Eastern Bluebirds, and 1-9/16" for Western & Mountain Bluebirds.


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