KEY 



TO 



North American Birds. 



CONTAINING A CONCISE ACCOUNT OF EVERY SPECIES OK LIVING AND FOSSIL 



BIRD Ar PRESENT KNOWN FROM THE CONTINENT NORTH OF THE 



MEXICAN AND UNITED STATES BOUNDARY, INCLUSIVE 



OF GREENLAND AND LOWER CALIFORNIA, 



WITH WHICH ARE INCORPORATED 



GENERAL ORNITHOLOGY: 



AN OUTLINE OF THE STRUCTURE AND CLASSIFICATION OF BIRDS; 



AND 



FIELD ORNITHOLOGY, 



A MANUAL OF COLLECTING, PREPARING, AND PRESERVING BIRDS. 



E\iz 9Ef)irU C^tiitian, 



EXHIBITING THE NEW NOMENCLATURE OF THE .AMERICAN ORNIPHOLOGLSTS' UNION, AND 

 INCLUDING DESCRIPTIONS OF ADDITIONAL SPECIES, ETC. 



By ELLIOTT COUES, A.M , M.D., Ph.D., 



Late Captain and Assistant Surg;eon V. S. Army and Secrctnry U. S. Geoloj^ical Survey ; Vice-President of the American 



Ornitliologists' Union, and Chairman of the Committee on the Classification and Nomenclature of North American Birds ; 



Foreijrn Member of the British Ornitholog-ists' Union ; CorrespondinsJ Member of the Zofllogical Society 



of London ; Member of the National Academy of Sciences, of the Faculty of the National 



Medical College, of the Pliilosophical and BioloL^ical Societies of Washinglon, 



of the Genera! Council of the Theosophical Society of India, etc. 



PROFUSELY ILLUSTRATED. 



BOSTON: 

 ESTES AND LAURIAT. 



1887. 



