This perch will serve a wide variety of nesters.Some species of birds prefer an open-front box. Song sparrows, catbirds, thrashers, phoebes, robins and barn swallows like to raise their families in a platform nest. This simple perch may be placed under the eaves, inside a garage or barn, or on the side of a building. It offers protection from elements and requires no maintenance. Suitable for Gray Catbirds (Dumetella carolinensis), American Robins (Turdus migratorius) and Barn Swallows (Hirundo rustica).