|
![]() |
|||
|
||||
OverviewThe highly variable North American red crossbill complex has presented one of the most controversial problems in avian systematics. Although crossbills wander nomadically and breed all year, they have not become homogenized in bill and body size. This study suggests that this crossbill complex contains several distinctive sibling species that breed sympatrically and show ecological differences. Full Product DetailsAuthor: Jeffrey G. GrothPublisher: University of California Press Imprint: University of California Press Volume: 127 Dimensions: Width: 17.80cm , Height: 0.80cm , Length: 25.40cm Weight: 0.272kg ISBN: 9780520097827ISBN 10: 0520097823 Pages: 156 Publication Date: 16 August 1993 Audience: Professional and scholarly , Professional & Vocational Format: Paperback Publisher's Status: Active Availability: Out of stock ![]() The supplier is temporarily out of stock of this item. It will be ordered for you on backorder and shipped when it becomes available. Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |