A comprehensive report on the bird collections made during 1871-1874 in several US states and territories, including Utah, Nevada, Arizona, California, Colorado, and New Mexico. This volume contains detailed descriptions of the collected birds, with information on their behavior, physiology, habitat, and distribution, as well as the methods used to collect and preserve them. The report includes numerous illustrations and maps, making it a valuable resource for ornithologists, naturalists, and bird enthusiasts. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.