Sibley Birds East 20459 Large Pit Zips for Easy

Large Pit Zips for Easy Venting

Handle Material: 6061-T6 Aluminum

Developed using All Terrain Contagrip®

Solid Swivel Connector with Patented 5-hole Length Adjustment

Padded Sleeve Fits Most 15-Inch Laptops

Sibley Birds East 20459 Large Pit Zips for EasyThe Sibley Field Guide to Birds of Eastern North America is for all birders seeking an authoritative guide to the birds of the east in a portable format that is easy to carry into the field. Compact and comprehensive, this guide features 650 bird species, plus regional populations, found east of the Rocky Mountains. Entries include stunningly accurate illustrationsmore than 4,601 in totalwith descriptive captions pointing out the most important field