Excerpt from Revision of the American Pikas (Genus Ochotona) In rock slides the pikas live in families or loose colonies, finding an abundance of food in the herbage and shrubbery growing near at hand, and enjoying protection from their enemies in the interstices of the slides. 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.