Birdhouse Entrance Portal Protector

Bird House Portal Protectors

Prevents birds from enlarging the entrance hole to birdhouses.

Wren House Portal Protector Opening: 1″ Diameter

Chickadee House Portal Protector Opening: 1.125″ (1 1/8″) Diameter

Nuthatch House Portal Protector Opening : 1.25″ (1 1/4″)Diameter

Bluebird House Portal Protector Opening: 1.5″ (1 1/2″) Diameter

Copper Bluebird House  portal Protector Opening: 1.5″ Diameter

Outer dimensions : 2″ x 2″

Comes with 4 small screws for easy attachment.

Made in the USA.

Note:  As a small-order  handling fee,  orders   of 1-3 portal protectors may ship by 1st class mail at the priority mail price.

These portal protectors are made by Erva Tool and Manufacturing Company

Rust-resistant zinc-plated mounting screws included. The 2″ × 2″ shields are made of solid 0.024″ thick copper that will develop a weathered patina over time.