Structures intended to shelter cavity-nesting birds, specifically bluebirds, and distinguished by particular construction features advocated by Dick Peterson, fall under a specific category. These domiciles often incorporate elements such as a deep cavity, a small entrance hole to deter larger birds, and a design that facilitates drainage and ventilation. A birdhouse exhibiting these attributes, such as one with a slanted roof and a 1.5-inch entry, exemplifies this type of construction.
The significance of such specially-designed shelters lies in their contribution to bluebird conservation efforts. Bluebirds have faced habitat loss and competition from non-native species. Providing housing that caters to their specific needs increases their nesting success, bolstering local populations. Historically, the movement to construct and deploy these structures has been integral to reversing bluebird population declines.