As a general rule in planning, never skimp on quality as they can always show in time. Going to the pet shop and ask for specific details can always be rewarding, if you don't have any knowledge whatsoever with your preferred kit, you can always ask them and compare their kits with each other. If you plan to get one, pick the one which can be maximized by your pet. The ideal gourds should have a diameter of 9 to15 inches. 5. Be sure that the walls and sides of the gourds are correctly measured to make it comfy for all the birds. The walls should not be too thick, as this will make the bird house warm. 6. After that is the proper measurement of the hole. Usually, a gourd bird house is build for purple martin birds. Decorative Bird Houses Bird houses are not used just so people can trap birds in a certain area. A bird house, especially one that is properly made can provide adequate shelter for a bird. They can provide not only a means for birds to rest their wings but also as a means of protection. A bird house will shield birds from harsh environments such as strong or heavy winds and storms. The only thing that you have to bear in mind always is the comfort level that your birds will have in their bird houses. That should be the first thing to consider before anything else. Even if you have with you the best fancy bird house, it will not matter if you see your birds are not comfortable with it. You can select one from them and think of nice bird house you can make for that bird species. Don't think of building too many bird houses in your garden or backyard. Birds are very territorial, and it is not that nice to see so many birds of different species dwelling on one place. 2. Determine all the needed dimensions and other specifications of your selected bird. They can also help avoid parasites from living into the nests of birds which are the number one cost why eggs don't hatch and why birds die. A bird house kit would be usually made of wood cedar. Why? Well, because this type is water resistant. This is also among the durable type of materials used for making a bird house kit.