Peterson’s Backyard Birds of Northern California Poster 19″ X 27″ overall size. Printed on 80# coated stock using fade-resistant inks and conforming to the highest production standards, it is truly a museum-quality piece. The illustrations are by Roger Tory Peterson, along with James Audubon, are Americas most famous bird naturalists and illustrators This stunning poster includes 81 of the most common backyard birds of the region. The region extends from the Oregon border southward to Santa Barbara on the coast and inland eastward to the Sierra Nevada range UPC: 740620903922 (in a mailing tube) ISBN: 9781621261308 Our item code: BNCPT-130.