Bird Migration: A General Survey: Oxford Ornithology Series book by Peter Bertho

Bird Migration: A General Survey: Oxford Ornithology Series book by Peter Berthold : Immediate dispatch from Somerset. Nice book in great condition. Pages in excellent condition. Hardcover. English. See images for condition.\n\nFormat: Hardcover\n\nAuthor: Peter Berthold\n\nISBN: 9780198546924\n\nCondition: Used - Very Good\n\nWestcove UK offer a 100% money back guarantee. If for any reason you are not happy with your transaction, please let us know and we will do whatever we can to resolve your issues.\n\nAbout the book >.>.> If geomorphological factors influence the migratory direction of migrants they are called leading lines. If broad-front migration is led by leading lines we speak of guided broad fronts. Very strong canalization of broad-front migration by leading lines may lead to mass migration, and, in areas where this occurs regularly, migration corridors or flyways develop. The Gourish Spit is an excellent example of a European flyway. On this isthmus migration i)