Bird architecture utilizes every conceivable material from the few chips on the ground of the killdeer, to the elaborate swinging nest of lint, lichens and hair of the oriole; every shape from the hummingbird's cup to the mud scoop of the swallow or the pensile purse of the vireo; and every location ranging from six feet under, and on the ground, over bushes, fences, shrubs, buildings, trees up to the highest towers, monuments and mountain crags.
........Bird architecture is one of the most interesting branches of natural history study and its surprises in the way of location, material and construction are never ending. The delight of discovering these things for yourself is enhanced by every treat for the eye and ear that nature has in store for her children; lapping water, waving grain fields, delicately colored and perfumed flowers and pungent forest odors. For every day spent exploring the secrets of Mother Nature she pays you compound interest. Not only is your mind filled with her signs, wonders and mysteries but your lungs expand with pure air, your blood washes free with delightful exercise and your heart beats in closer touch with the Creator.