A number of backyard birds nest in tree cavities. The list of these birds includes the eastern bluebird, tufted titmouse, Carolina chickadee, great crested flycatcher, screech owl, brown-headed and white breasted nuthatches, purple martin, tree swallow, Carolina and house wrens.
The problem is there are rarely enough natural cavities to go around. In addition, the suitable cavities that do exist are often taken over by aggressive introduced species such as house sparrows and European starlings. As a result, often few, if any, native cavity-nesting birds nest in Georgia’s backyards and neighborhoods.
Fortunately, many cavity-nesting species will nest in nesting boxes, Consequently, by erecting one or more nesting boxes in your yard, you will help alleviate this severe housing shortage and increase the diversity of birds using your yard.