You can also use your bird house to attract your favorite bird type. However, keep in mind that most bird houses are made to a standard size to attract most small to medium bird types. The houses themselves tend to be around 12 inches high by 8 inches deep by 6 inches wide, which suits many bird species.
The main factor to keep in mind is how large the entry hole is. The hole has to be large enough for the bird you want to attract, but small enough to keep out larger birds and predators. For instance, a songbird would use a 1 ½-inch hole and wrens like a 1 ¼-inch hole, according to bird experts.
Certain birds also like certain types of bird house designs. For instance, robins like platforms/shelves and martins like apartment complex-type homes with multiple openings. The important step is to research what type of habitat your favorite bird needs and purchase accordingly.
You might also search for bird houses by the type of bird you are looking to attract. For instance, if you put in "owl bird house," you might get a bird box made specifically for tawny owls.