A History Of North American Birds Land Birds Vol 3 Of 3 PDF Download

Excerpt from A History of North American Birds, Vol. 3 A. Inner toe equal to the middle in length; inner edge of middle claw pectinated. First quill longer than the third; all the quills with their inner webs entire, or without emargination. Tail emarginated. Feathers of the posterior face of the tarsus recurved, or pointed upwards. L. Strix. No ear-tufts; bill light-colored; eyes black; tarsus nearly twice as long as middle toe; toes scantily haired. Size medium. Ear-conch nearly. As long as the height of the skull, with an anterior operculum for only a portion of its length; symmetrical. B. Inner toe decidedly or much shorter than the middle; inner edge of middle claw not pectinated. First quill shorter than the third; one to six outer quills with their inner webs emarginated. Tail rounded. Feathers of the posterior face of the tarsus not recurved but pointed downwards. I. Nostril open, oval, situated in the anterior edge of the cere, which is not inflated. A. Cere, on top, equal to, or exceeding, the chord of the culmen; much arched. Ear-conch nearly as long as the height. Of the skull, with the operculum extending its full length; asymmetrical. 2. Otus. One or two outer quills with their inner webs emarginated. With or without ear-tufts. Bill blackish; iris yellow. Size medium. Ear-tufts well developed; only one quill emarginated Otus. Ear-tufts rudimentary; two quills emarginated Brachyotus. B. Cere, on top, less than the chord of the culmen; gradually ascending basally, or level (not arched). Ear-conch nearly the height of the skull, with the operculum extending only a part of its full length, or wanting entirely. Jr Anterior edge of the ear - conch with an operculum; the two ears asymmetrical. 3. Syrnium. Five to six outer quills with their inner webs emarginated. Top of cere more than half the culmen. Without ear-tufts. Bill yellow; iris yellow or black. Size medium or large. Six quills emarginated; toes densely feathered the ter minal scutellae concealed; iris yellow. Size very large Scotiaptex. My unpublished determinations of the North American species were furnished, by request, to Dr. Cones, for introduction into his Key of North American Birds consequently the names used in these pages are essentially the same as those there employed. 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.