Fig. 6.
Fig. 7.
Fig. 8.
There remain the sides to be walled up. The boards for these can now be nailed on from the bottom upward, with the exception of the pieces H H (Fig. 6), which must be left over until the wire netting has been attached to the upright pillars. A window two feet square, of a single pane of strong glass, well bedded in putty, to give more light to the interior, without extra draught, and with wire netting over the glass on the inside, is placed at the back, where also is seen the door, capacious enough for a person to get in and clean out the aviary when required; for which purpose three feet by two feet will give sufficient room. But we do not want the bother of unfastening this big door, and stooping down to the floor, every time we put in the saucers of food, besides running the risk of allowing some of the birds to fly out during the operation; so we construct another one, much smaller, at the side (Fig. 7), at about the height of one's elbow when standing by it. Two brackets fixed to the door serve to keep it in a horizontal position when open, thus forming a table on which to place and fill the saucers with seed and bread and milk, before transferring them to the wooden tray at the same level inside. Another little door, fourteen inches by four inches, with the bottom of it flush with the brick floor, A (Fig. 8), and a spring like that of a mouse-trap attached to the hinges to make it shut, will be large enough to admit a zinc trough one foot square, two inches deep, which will contain abundance of water to give all the birds a good bath daily.
Two coats of lead-color painted over the whole outside wood-work, two coats of dark green over that and over the wire netting, three coats of light lead-color over the outside of the roof, with three coats of white paint over the walls and roof inside, will complete the work of the house itself.
Fig. 9.
