You can paint these woods to add more protection. Be sure to use non-toxic and water-resistant paints in these woods. Bird houses that are made of metal can be effective if you want to place it inside the house. Unlike woods, it does not invite termites and other insects that fed on woods. Be sure to ask some bird experts for suggestions of materials to use for your bird house. If ever you did stumble into a blue bird, watch closely how they move about and what type of house they are building. Another way of doing this is to ask bird experts. They will be able to point out some important factors to consider when building a blue bird house that will suit the birds that you want to attract. Think of the bird's safety too. You can do away with materials that can harm the birds while they move around the bird house. In some magazines or over the internet, you can find many designs to pattern your fancy bird house into. You can also customize the bird house according to what suits you best. Most of all, the entrance to the birdhouse must be only exact for the dwellers to keep away the predators from getting inside. The maintenance. The design of the birdhouse must allow the easy access for cleaning. Yes, the dwelling place of your pet birds must also be kept clean. The nest parasites should be prevented from gaining habitat therein. Keep in mind that the idea is to make it as bulky and as comfortable looking. Some people have also been creating edible bird craft houses for years now. They made use of chocolates of peanut butter as the foundation for the bird houses. The good thing about these materials is that they also serve as an adhesive and can easily be formed into any shape the owner wants. If you have a pet bird that you do not want to fly away from you, consider having bird houses that lets the air in naturally. 2. Roof. Having a roof on your bird deck house is a means of protecting the birds from wind and rain. It is also one way of preventing bigger animals from playing and eating the birds inside.