Be sure that the front and rear pieces are exactly the same size and shape to insure our house going together nicely later.
Take the bottom piece E and draw light lines from corner to corner, and with a dot locate the points where we are to bore our drainage holes.
In boring these take care not to split through on the opposite side.
Locate the holes for ventilation next and bore these carefully.
Some Bird Houses Made in the Schools at Rochester, N. Y.
Take our back brace F next and draw a light pencil line from end to end, through the center, and locate the holes for nailing to the tree 1 inch in from either end. The holes for screwing piece F to the box are 3½ inches beyond these outer holes. Bore carefully.
Bore the entrance hole with an expansive bit set so as to bore a hole 1½ inch in diameter. The center for this hole is 3 inches down from the top and 4¼ inches from either side.
If the house is to be painted it should be thoroughly sandpapered with No. ½ sandpaper, going with the grain.
Take the sides and bevel them to fit the front and back pieces, that is plane them so that when they are placed in proper position against the front and rear, the edges will follow the same sweep as the eaves and the bottom edge. All cutting should be finished before sandpapering so as not to dull our plane blade with the fine particles of sand left in the wood by the sandpaper.