Introduction
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I am under obligations to Dr. Elliott Coues, of the United States Army, for the valuable advice contained in Chapter XIII.; and I esteem it a piece of good fortune that his excellent work ("Field Ornithology") should have been published before this effort of mine, for I hardly know where else I could have found the information with authority so unquestionable.

Prof. Edward S. Morse has increased the debt of gratitude I already owe him, by taking his precious time to draw my illustrations, and prepare them for the engraver.

Mr. J. Edward Fickett of Portland, a sailmaker, and formerly of the navy, has assisted in the chapter upon tents; and there are numbers of my young friends who will recognize the results of their experience, as they read these pages, and will please to receive my thanks for making them known to me.

Portland, Me., January, 1877.