10/04/2026
Don't take down your bluebird house for winter. It might be a bedroom. π¦
Eastern bluebirds are one of the great comeback stories of the 20th century.
The comeback:
β In the mid-1900s, bluebird numbers crashed due to competition for nest cavities from house sparrows and starlings, habitat loss, and pesticides
β Volunteers began building and monitoring nest box trails
β Numbers rebounded across the eastern US
What bluebirds do in fall and winter:
β Families stay together in small flocks
β They eat fruit and insects: sumac, dogwood, winterberry, juniper, and mealworms
β On cold nights, several bluebirds may crowd into a single nest box to share body heat
β Severe winters can kill many birds, so shelter matters
How to prepare your box for winter:
β Clean out old nests now. Wear gloves and a mask
β Check for damage, and repair or replace if needed
β Leave the box up all winter. Don't plug the hole
β Make sure the entrance hole is clear and the box is stable
Food and water:
β Offer mealworms, suet, or fruit (softened raisins) in a feeder
β Provide a heated birdbath (bluebirds love water in winter)
β Plant native fruiting shrubs like dogwood, sumac, winterberry, and holly
The guilt-reversal:
We put boxes up in spring and forget them by winter. But winter is when the birds need shelter the most.
A small wooden box.
A family of blue. π