Download or read book Evolution of Colors of North American Land Birds Classic Reprint written by Charles A. Keeler and published by Forgotten Books. This book was released on 2018-01-05 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Evolution of Colors of North American Land Birds The present paper has been written more with the hope of stimulating thought and inciting research in a new and as yet almost untrodden field of ornithological inquiry, than with the expectation of reaching definite results. The subject is as yet too new and difficult to be reduced to even the semblance of an exact science, and accordingly all the views here set forth are more or less provisional and tentative. I have constantly pro ceeded upon the assumption that a poor theory is better than no theory, provided it be not considered as final, since it affords an opening wedge for the further study of a subject. Accordingly many of the views here set forth are hardly to be considered as more than guesses, and it is expected that future study will serve to show their fallacy. If they lead to this further study, however, and to more exact and comprehensive work by others, I shall be glad to see them overturned and their places filled by more worthy hypotheses. In the preparation of the work I have received much valuable assistance, which I here take pleasure in ac knowledging. Much of the examination of specimens was done at the United States National Museum, the authorities of which kindly placed their collection of birds at my disposal. To Mr. Robert Ridgway I am ih debted for innumerable personal favors during my stay in Washington. His Manual of North American Birds has formed the systematic basis for this paper. Dr. L. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Evolution of the Colors of North American Land Birds written by Charles A. Keeler and published by . This book was released on 1971 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of the Colors of North American Land Birds written by Charles Augustus Keeler and published by Hardpress Publishing. This book was released on 2012-01 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
Download or read book Evolution of the Colors of North American Land Birds written by Charles Keeler and published by San Francisco : California academy of sciences. This book was released on 1890 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of the Colors of North American Land Birds written by Charles Augustus Keeler and published by Palala Press. This book was released on 2016-05-11 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.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.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. 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.
Download or read book EVOLUTION OF THE COLORS OF NOR written by Charles Augustus 1871-1937 Keeler and published by Wentworth Press. This book was released on 2016-08-26 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. 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. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. 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.
Download or read book Evolution of the Colors of North American Land Birds written by Charles A. Keeler and published by . This book was released on 1893 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of the Colors of North American Land Birds By Charles A Keeler written by Charles Augustus Keeler and published by . This book was released on 1893 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of the Colors of North American Land Birds by Charles A Keeler written by Charles Augustus Keeler and published by . This book was released on 1893 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A History of North American Birds Vol 1 written by S. F. Baird and published by . This book was released on 2016-06-27 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A History of North American Birds, Vol. 1: Land Birds The present work is designed to meet the want, which has long been felt, of a descriptive account of the Birds of North America, with notices of their geographical distribution, habits, methods of nesting, character of eggs, their popular nomenclature, and other points connected with their life history. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Color Key to North American Birds written by Frank M. Chapman and published by . This book was released on 2016-06-27 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Color Key to North American Birds: With Bibliographical Appendix We cannot place a gun in the hands of these thousands of bird-lovers whom we are yearly developing; indeed most of them would refuse to use it. Specimens, therefore, are rarely available to them and we should make some special effort to meet their peculiar wants. The present volume has been prepared with this end in view. Identification of the bird in the bush is its sole end; an end, however, which we trust will prove but the beginning of a new and potent interest in nature. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book History of North American Birds Vol 2 written by Spencer Fullerton Baird and published by . This book was released on 2015-07-03 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from History of North American Birds, Vol. 2: Land Birds Gen. Char. Bill conical, the outlines slightly curved; the lower mandible decidedly larger than the upper; the commissure gently sinuated; the roof of the mouth not knobbed. Feet slender; tarsus rather longer than the middle toe; the hinder toe a little longer than the outer lateral, which slightly exceeds the inner; the outer claw reaching the base of the middle one, and half as long as its toe. Claws moderately curved. Tertiaries and secondaries nearly equal; wing somewhat pointed, reaching not quite to the middle of the tail. First quill a little shorter than the second and equal to the fifth; third longest. Tail Spizella monticola. rather long, moderately forked, and divaricated at the tip; the feathers rather narrow. Back streaked; rump and beneath immaculate. Young streaked beneath. This genus differs from Zonotrichia principally in the smaller size and longer and forked, instead of rounded tail. Birds of the year of this genus are very difficult to distinguish, even by size, except in monticola. The more immature birds are also very closely related. In these the entire absence of streaks on a plumbeous head point to atrigularis; the same character in a reddish cap, and a reddish upper mandible to pusilla; a dusky loral spot with dark streaks and generally a rufous shade on top of head, to socialis. S. breweri, with a streaked head, lacks the dusky lore and chestnut shade of feathers. S. pallida generally has a median light stripe in the cap, and a dusky mandibular line. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Evolution of the Colors of North American Landbirds written by Ch. A. Keeler and published by . This book was released on 1893 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Color Key to North American Birds written by Frank M. Chapman and published by Forgotten Books. This book was released on 2018-02-07 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Color Key to North American Birds: With Bibliographical Appendix Frank Wide experience has shown the writer, however, that where one dead bird is identified, hundreds of attempts are made to name the living bird in nature. This is to be expected. It is the natural Outcome of the recent remarkable interest in the study of birds which, fostered by Audubon Societies and nature study teachers, has assumed an ethical and educational importance of the first magnitude. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book A History of North American Birds Vol 3 Classic Reprint written by S. F. Baird and published by . This book was released on 2015-06-28 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A History of North American Birds, Vol. 3 The group of birds usually known as the Raptores, or Rapacious Birds, embraces three well-marked divisions, namely, the Owls, the Hawks, and the Vultures. In former classifications they headed the Class of Birds, being honored with this position in consequence of their powerful organization, large size, and predatory habits. But it being now known that in structure they are less perfectly organized than the Passcres and Strisorcs, birds generally far more delicate in organization, as well as smaller in size, they occupy a place in the more recent arrangements nearly at the end of the Terrestrial forms. The complete definition of the order Raptorcs, and of its subdivisions, requires the enumeration of a great many characters; and that their distinguishing features may be more easily recognized by the student, I give first a brief diagnosis, including their simplest characters, to be followed by a more detailed account hereafter. Common Characters. Bill hooked, the tipper mandible furnished at the base with a soft skin, or "cere," in which the nostrils are situated. Toes, three before and one behind. Raptores. Strigidae. Eyes directed forwards, and surrounded by radiating feathers, which are bounded, except anteriorly, by a circle or rim of differently formed, stiffer feathers. Outer toe reversible. Claws much hooked and very sharp. Legs and toes usually feathered, or, at least, coated with bristles. The Owls. Falconidae. Eyes lateral, and not surrounded by radiating feathers. Outer toe not reversible (except in Pandion). Claws usually booked and sharp, but variable. Head more or less completely feathered. The Hawks. Cathartidae. Eyes lateral; whole head naked. Outer toe not reversible; claws slightly curved, blunt. The Vultures. The preceding characters, though purely artificial, may nevertheless serve to distinguish the three families of Raptores belonging to the North American Ornis; a more scientific diagnosis, embracing a sufficient number of osteological, and accompanying anatomical characters, will be found further on. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."
Download or read book COLOR KEY TO NORTH AMER BIRDS written by Frank M. (Frank Michler) 1864 Chapman and published by Wentworth Press. This book was released on 2016-08-25 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. 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. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. 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.
Download or read book A History of North American Birds written by Spencer Fullerton Baird and published by . This book was released on 1874 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
