09/04/2026
Thinking about taking your birdhouses down for winter?
You may want to leave them up.
After nesting season, some birdhouses get a second job: **winter shelter**.
Bluebirds, chickadees, titmice, nuthatches, wrens, and small woodpeckers are among the cavity-using birds that may shelter in tree holes, nest boxes, or specially designed roost boxes during cold weather.
On especially harsh nights, several birds may even crowd into the same shelter to conserve heat.
For small birds, this can make a meaningful difference.
A chickadee has very limited energy reserves. During a freezing winter night, it may burn much of the fat accumulated during the day simply staying warm. Sheltered cavities help reduce exposure to wind, snow, and precipitation while birds use their feathers, metabolism, and even controlled drops in body temperature to conserve heat.
# # # A better fall birdhouse routine
**Leave the box up.**
It may provide winter shelter after nesting is finished.
**Clean it carefully.**
Once you're certain there is no active nest, remove old nesting material and debris. Mild detergent and water are usually sufficient. Heavily soiled boxes can be disinfected according to proper nest-box cleaning guidance.
**Repair leaks or loose parts.**
Winter shelter works best when it stays dry and secure.
**Reduce wind exposure.**
If practical, orient the entrance away from prevailing winter winds.
**Winterize only if appropriate.**
Cornell NestWatch suggests temporarily closing ventilation and drainage openings when converting a nest box specifically for winter roosting. Just remember to reopen them before the breeding season.
For an even better option, install a dedicated **roost box**. These can have a lower entrance, interior perching surfaces, and enough room for multiple birds.
Your whole yard can help, too.
Leave safe dead trees and snags where possible. Their old woodpecker holes and natural cavities are valuable wildlife shelters.
Grow dense native trees and shrubs, including evergreens that give birds protection from wind and snow.
And consider leaving a brush pile in a safe corner of the yard. Small birds can use it for shelter from storms and predators.
Not every bluebird migrates long distances, either. Depending on location, some remain relatively close to their breeding grounds, and young Eastern Bluebirds from later broods may stay with their parents through winter.
A birdhouse isn't necessarily finished working when nesting ends.
Sometimes it's just changing jobs.