Generally, each bird house must be at least 25 feet away from each other. For some birds, like bluebirds should be 300 feet apart. Meanwhile, purple martins prefer to reside together with other bird colonies and so they should be in apartment houses. Best materials to use Wood definitely is the best material to use. A bird house will shield birds from harsh environments such as strong or heavy winds and storms. Among the primary purpose of bird houses is to protect a bird from their natural predators such as cats and snakes. Birds' nests may also have these pests that destroy the eggs before they hatch. Now, most bird houses are equipped with devices that can avoid these pests from ever coming to your birds' nest. Specifics on bird houses There are crafted bird houses which are ornamental and can likely enhance your garden or home. You can get cheap wooden bird houses for less than 20 US dollars tops, even an ornamental one can be at that price range too. But having to choose quality products are your top priority as they can come cheap, having to invest a little more won't hurt your budget. If you check out some works of photo journalist, you will come upon some pictures of bird and bird houses. The fact that they can elusive and will take patience and time to take is what makes it challenging. Not everybody can get up close and personal with bird and bird houses. And those who did are really worth admiring. During the spring time, it is always best to do the cleaning. That falls on the early weeks of the month of March. The hinges should be rust-proof so that you would also get protected. More so, the hinges must be safely placed because some animals like the raccoons are capable of opening those. Ensure a right amount of ventilation. If you have one that is fully covered, consider putting on holes on the top, bottom and the sides. You do not need to do this if the bird deck house has an open space where birds can move out and about. 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.