Swallows are an enjoyable species of wildlife to have around the yard. In addition to their entertaining acrobatics they are wonderful bug eaters, especially for mosquitos here in Alaska. The Violet Green swallow and tree swallow migrate to southcentral Alaska around May 1st. In the wild they chose to nest in abandoned woodpecker nest sites but these are relatively rare and so the birds will take up residence in anything that meets their requirements.
Manmade nest boxes are easy to construct and install. The following instructions, illustrations and guidelines will guide you through the process. Its a great project for the whole family to participate in.
Materials: Sides, back and bottom panels 1 x 8" finished boards (actual dimensions 3/4" x 7 1/2"). Top: 1/2" plywood.
Place a 1/4" hole in the back, near the top, for hanging the nest box on a nail. If the nest box is to be placed on the side of a building, extend the back panel board an additional 2" in length for easy mounting.
The box can also be placed on a 3" or 4" diameter post or pipe, ten or more feet tall, attached to the bottom of the box and a 12" metal sleeve should cover the wooden post just below the nest box to discourage predators. If painted it will not be unsightly. When a post is used, add one inch overhang to the back of the nest box top.