This section is from the book "The American Bird-Keeper's Manual", by James Mann. Also available from Amazon: The American Bird-Keeper's Manual.
If you intend to breed your birds flying at large in a room, and have a choice, choose one, the windows of which look to the south-east; if in cages, place them in the same situation, for the same purpose, to have the benefit of the morning sun, which is very beneficial, especially to the young birds. If you breed in a room, you must have one or two windows latticed with wire, so put on that you can raise the window to admit the air when it is mild, and shut it down when cold. It is better not to have the open windows opposite one to the other, as this makes a draft through the room, which I have found, by experience, to be injurious to the young birds, especially when moulting. If you use cages, hang them on the wall opposite the windows, where they will have the early sunshine longest; this is much better than hanging them on the roof or near the window.
 
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