David allen sibley biography for kids

These books share the same illustrations and maps, and very similar text, differences are mainly in the size of the books and the inclusion of species and variations.

Summary: The big guide is more of a reference book and is recommended when you want to have access to all species and as much information as possible about every species.

The smaller Eastern and Western Guides are true &#;Field Guides&#; and are recommended when you want a more portable size and a book that focuses on the species and variations you are most likely to see.

Size: The Eastern and Western guides are much smaller.

At just under 5 by 8 inches, and under pounds, they will fit into many pockets. The &#;Big Sibley&#; is larger at by inches, and nearly twice as heavy at pounds. It will fit in a large jacket pocket, but generally has to be carried in a backpack or other bag.

Some benefits of the larger size of the big Bird Guide is that maps are larger (about 10%) and illustrations are larger (variable but