Birders habitually record their sightings while in the field, noting the time and location of the sighting and the type of bird they saw. They also compile life lists: checklists for ticking off the birds they see. This indispensable birder's companion includes both ample space for on-site notes and a life list to be filled in by the legions of passionate birders who have bought Sibley's bestselling guides. Included are entries for the 1073 species found in the United States and Canada, with space for recording where and when a bird was seen and for notes or memories about the sighting. At the back is a complete checklist of all the birds for building the life list. The cover features never-before-published art by the author.