Watch your backyard birds closely to determine which home is right for your garden. Expanding your bird garden to offer cozy housing is another way to enjoy your feathered friends. Placing a bird house in your yard provides needed shelter during the colder months. The different types and sizes of houses accommodate varied bird species. The size, entrance hole, and construction of each home greatly influences the types of birds interested in it. All bird houses should have adequate drainage, interior space, and insulation for a successful roost.