Bluebirds are one of the more popular birds for birdwatching. While many people know how to build bird houses for bluebirds, not many understand the preferred colors to use for bluebird houses. Birds, unlike people, do not require a range of colors to make a home for themselves.
Natural wood color is a preferred color because bluebirds seek out trees and bushes as perches to hunt insects and worms. Birdhouses should remain a natural wood color to imitate the color of trees.
Bluebirds prefer earthy tones, such as the colors of grass and dirt. For this reason, shades of brown and green are good choices. Bright colors attract other birds and predators, which is detrimental to bluebirds.
Colors that blend in with the local scenery are good choices for bird houses. Blended colors help hide the nest by making the nest the same color as objects around it. Paint the bird house the same color as the fence behind it to blend it into the scenery and help hide it.
Dark colors are not ideal for bird houses because the darkness attracts heat. The heat will build up temperature within the nest, making it uncomfortable for the birds.