Very good paperback. Crease to rear cover. It has been recognized now for more than a decade that migrant landbird populations in North America have been declining. Fragmentation of forests on the northern breeding grounds, and habitat loss in tropical wintering zones are thought to be the main reasons. Based on the work of over a hundred ornithologists, this is the first book to address this major conservation issue, and brings together a wealth of data on species ecology factors affecting populations. Based on a Symposium Hosted by Manomet Bird Observatory, 6-9 December 1989.