The 'Clements' Checklist, now in its 6th edition, is probably the most widely used checklist of world birds. Now listing almost 10,000 species of birds, this is the list of choice for members of the American Birding Association as well as many birders in Europe. Every species is listed using English and scientific names, together with a brief description of the species' range and space to enter your own sightings. All subspecies are included and listed separately, with ranges. For the first time, the English names follow the recently published list of English names as recommended by the International Ornithological Congress and its teams of regional experts.
If you want to own a book that has every recognized species of bird with every subspecies and where each species and subspecies is found and a nice little space for you to write in the date and location where you first saw or heard the bird, this book is for you (It's definently for me!!!) This is the checklist used by most of the world's top birder's and since the passing of Mr. Clements, the list is now being managed by Cornell University. Another piece of essential birding gear.