The ideal portable companion, the world-renowned Collins Gem series returns with a fresh new look and updated material.

The ideal portable companion, the world-renowned Collins Gem series returns with a fresh new look and updated material.

The ideal portable companion, the world-renowned Collins Gem series returns with a fresh new look and updated material.

With expanded text and even larger colour illustrations, this guide covers every species and every plumage you will see, with detailed information on identifica

A field guide to North American birds presents an identification method that uses panoramic illustrations, range maps, and an organization system based on habit