Peterson First Guides are the first books the beginning naturalist needs. Condensed versions of the famous Peterson Field Guides, the First Guides focus on the animals, plants, and other natural things you are most likely to see. They make it fun to get into the field and easy to progress to the full-fledged Peterson Guides.

שם הספר
The birds
A Field Guide to the Birds of Eastern and Central North America
A Field Guide to the Birds of Eastern and Central North America
Backyard Birds (Peterson Flash Guides)