Wren House - Information on Buying Or Building

The Wren House is one of the most common types of birdhouses in the backyard garden. Whether you're considering buying or building, you may find the following information helpful.

Wrens are cavity nesting birds and will readily make use of man-made wren bird houses. Let's face it, Wrens will nest in just about anything.

But to give them the best chance at nesting success we need to provide a properly constructed Wren House. This means knowing the correct height, width, and hole size dimensions.

Types of Wood Materials

Most birds are attracted to a natural looking nest box. If you plan on purchasing or building one, make sure that the wood used in constucting the house is a naturally decay resistant wood such as cedar, redwood, or exterior plywood or recycled plastics.

Avoid purchasing any nesting box that is painted and do not use treated wood that has been treated with copper arsenate. Copper arsenate is being fazed out but check with your lumber provider to be sure.

Diameter of Hole, Floor, Size

Wrens prefer a house that has an entry hole dimension of 1 1/8 inches, any larger and house sparrows and other less desirable birds will use them.

The floor should be 4 inches square and 3-6 inches below the entry hole.

Do not add or buy any birdhouse with a perch. The birds don't need it, whereas preadators and other less desireable birds will have easy access if perches are used.

The roof should be slightly slanted to shed water and keep the contents of the nest dry. For a more traditional style, the front and back can be cut as an A frame.

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Each side should provide for ventilation. Drill 1/4 inch holes on the sides of the house just under the roof.

Also make sure there is adaquate drainage in the bottom of the nesting box by drilling 1/4 inch holes in each corner of the bottom of the wren house.

The side or front should slide or swing open for easy cleaning. Of course Woodlink not only makes it easy for you but offers an Eco-Strong Wren House that will last forever.


Mount or hang the house six to ten feet high in or near a tree or shrub. House wrens seem to prefer areas with trees and shrubs.

Make sure to place the house on an outside branch and not deep into the foliage. Fence rows and brushy draws are ideal.

Wrens eat a lot of insects and are easy to attract. You and your garden will appreciate having them around.

Cleaning Wren Houses

It's important that no matter what type of house you provide, traditional, gourd, ect. that you clean it out after each nesting cycle. Your house may be used twice a season.

The first cleaning should take place right after the young have fledged. This should be a simple cleaning of emptying the material in the trash and brushing it out.

The second cleaning can be done in the fall after the wrens have begun migrating south. This cleaning should be a thorough cleaning.

Remove all nesting material and wash the inside with a 10 percent water and bleach solution. This will give your Wrens the best conditions for the next nesting season.

It's important to offer housing that can be cleaned. Mites and parisites can overwinter in birdhouses and harm or even kill the nestlings.

Do check out our recomendation here: Eco-Strong Wren House

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