Keywords: The Auk BHL27444489.jpg The Auk 27444489 87790 15959 Table of Contents v 6 1889 http //www biodiversitylibrary org/page/27444489 1889 American Ornithologists' Union Public domain The BHL considers that this work is no longer under copyright protection <br> Biodiversity Heritage Library Check categories 2015 October 29 PD-old-70-1923 1889 books Images uploaded by Fæ Files from the Biodiversity Heritage Library Biodiversity Heritage Library Ernst Mayr Library of the MCZ Harvard University collection |