Portal Protectors
Portal Protectors - 1-1/8" Portal Protector is backordered and will ship as soon as it is back in stock.
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Protect your nesting birds from squirrels and predators
Keep your nesting birds safe by adding this durable metal portal protector to the entrance hole of your existing birdhouse. Squirrels often chew and enlarge entry holes to gain access to nests—but they can’t chew through metal. This sturdy protector reinforces the entrance so your birds can come and go easily while their nest remains secure.
Made from zinc-coated steel with brass hardware, this protector is designed to last through years of outdoor use. Installation is quick and easy—simply attach it over the entrance hole of your current birdhouse using the included hardware.
- Metal portal protector only – attaches to your existing birdhouse
- Reinforces entry hole to prevent squirrels from enlarging it
- Chew-proof zinc-coated steel construction
- Brass mounting hardware included
- Helps protect nestlings until they fledge
- Quick and easy installation
Choose the correct opening size for the birds you want to protect:
1-1/8 inch – Wrens
1-1/4 inch – Chickadees, Titmice, Nuthatches
1-1/2 inch – Eastern Bluebirds
1-9/16 inch – Mountain or Western Bluebirds
A simple upgrade that helps keep your nesting birds safe, secure, and returning year after year.
THE DUNCRAFT GUARANTEE
We want you to be completely happy with our products and service. We guarantee products for one year from date of purchase. If you are anything less than completely satisfied, you may return your purchase for an exchange or a product refund.
DELIVERY & SHIPPING
Orders are typically processed within 1-2 business days. Standard shipping usually takes 3-7 business days, depending on your location. Please note, during high-demand periods, shipping may take a little longer.
Portal Protectors
❤️ Why Bird Lovers Trust Duncraft
The Leader in Backyard Bird Feeding Since 1952
Truly an American original, Duncraft has stayed true to its mission since the 1950s: to make backyard bird feeding easier, more enjoyable, and more rewarding.
We design and build over 500 exclusive products you won’t find anywhere else—each one made for birds, field-tested for success, and built to last. Backed by exceptional service and dependable home delivery, Duncraft is the trusted choice for bird lovers everywhere.
Let's get started:
Need help finding the right bird feeding solution?
Our friendly birding experts in Concord, NH are just a call or email away. Reach out Monday–Friday, 9 AM to 5 PM EST at 800-763-7878 or info@duncraft.com—we’re happy to help!
What makes Duncraft bird seed so popular?
We’ve been perfecting our bird seed blends since 1952—using only premium ingredients birds actually eat. Our small-batch, fresh-packed seed attracts more birds and supports healthier feeding with less waste. It’s the food your backyard birds come back for.
What if I’m new to bird feeding and not sure what to expect?
No problem at all—we’re here to help! Every Duncraft product is designed to make bird feeding easy and enjoyable, whether you’re just starting out or have years of experience. And if your feeder doesn’t work out, you’re covered by our 365-Day Guarantee. We’ll help you exchange it or find the right fit for your birds.
Where are Duncraft Brand products made?
Right here in the USA! Duncraft has been family-owned and operated since 1952, with over 500 exclusive products designed and built in Concord, NH. Our team combines hands-on experience with expert care to bring you the best in backyard bird feeding.
Portal Protectors
Protect your nesting birds from squirrels and predators
Keep your nesting birds safe by adding this durable metal portal protector to the entrance hole of your existing birdhouse. Squirrels often chew and enlarge entry holes to gain access to nests—but they can’t chew through metal. This sturdy protector reinforces the entrance so your birds can come and go easily while their nest remains secure.
Made from zinc-coated steel with brass hardware, this protector is designed to last through years of outdoor use. Installation is quick and easy—simply attach it over the entrance hole of your current birdhouse using the included hardware.
- Metal portal protector only – attaches to your existing birdhouse
- Reinforces entry hole to prevent squirrels from enlarging it
- Chew-proof zinc-coated steel construction
- Brass mounting hardware included
- Helps protect nestlings until they fledge
- Quick and easy installation
Choose the correct opening size for the birds you want to protect:
1-1/8 inch – Wrens
1-1/4 inch – Chickadees, Titmice, Nuthatches
1-1/2 inch – Eastern Bluebirds
1-9/16 inch – Mountain or Western Bluebirds
A simple upgrade that helps keep your nesting birds safe, secure, and returning year after year.
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