Birdhouses: A Beginner's Guide

Which birds use birdhouses

Not all birds nest in boxes — only cavity-nesters, which naturally nest in holes in trees. Bluebirds, chickadees, wrens, nuthatches, and tree swallows are the main backyard species that use birdhouses. Knowing which birds will use a box helps you set it up for the birds you want.

Match the entrance hole

The size of the entrance hole determines which birds can use the house. A one-and-a-half-inch hole suits bluebirds and tree swallows, while a smaller hole fits chickadees and wrens. Getting the hole size right attracts the right birds and keeps larger, aggressive birds out.

Choose the right placement

Place the house at the right height — typically five to ten feet up — and in the right habitat. Bluebirds prefer open areas with scattered trees, while chickadees and wrens like a more wooded setting. Face the entrance away from prevailing winds and hot afternoon sun.

Use the right materials

The best birdhouses are made of untreated wood, which breathes and insulates well. Avoid metal and plastic, which can overheat in the sun. A box with ventilation holes and drainage in the floor keeps nestlings comfortable and dry. Simple, natural materials are best.

Keep it safe from predators

A predator guard below the box is the single most important safety feature, blocking climbing predators. Also avoid placing the house where cats or squirrels can reach it from a nearby branch or fence. A safe location gives the nesting birds their best chance of success.

Don't disturb nesting birds

Once birds move in, give them space. Watch from a distance, and avoid opening the box or lingering nearby, which can stress the parents or attract predators. The reward of a birdhouse is watching the cycle unfold — from a respectful distance.

Clean it out after nesting

After the young have fledged, clean out the old nest material so the box is ready for the next brood or the next season. A clean box is healthier for future tenants. Many cavity-nesting birds raise two broods a year, so cleaning between broods helps.

Be patient

It may take a season or two for birds to find and use your birdhouse. Don't be discouraged if it sits empty at first — put it up in late winter or early spring, before nesting season, and give the birds time to discover it. Patience is part of the process.

The joy of nesting birds

There are few backyard pleasures like watching a pair of bluebirds or chickadees raise a family in a box you put up. From nest-building to the day the young fledge, it's a front-row seat to nature's quiet drama. A birdhouse is a small gift that keeps giving.

Watch the cycle unfold

The real reward of a birdhouse is watching the full nesting cycle — a pair choosing the box, building a nest, feeding chicks, and finally the young fledging. It's a front-row seat to one of nature's quiet dramas, played out over just a few weeks.

Keep binoculars by the window and watch from a distance. Each stage has its own fascination, and the day the young fledge is a moment you won't forget.

Mount it securely

A birdhouse needs to be mounted firmly so it doesn't sway or fall, and so predators can't reach it. A metal pole is the best choice, since it's harder for predators to climb than wood or a tree trunk. Secure mounting protects both the house and the birds inside.

A wobbly or easily reached box won't be used, or worse, will put the nest at risk. Solid, safe mounting is worth doing right from the start.