Designed to fit in a backpack or pocket for easy access, each of these handy and popular bird field guides comprises 272 pages and features about 175 birds organized by family as approved by the American Ornithological Union. Standard features include:

Locator Map at the front listing regional birding hotspots;
Introduction by an expert on where to find the state's top birds
How-To-Use Section with general tips on birding and advice on making the most of the guide;
125 Easy-Access Individual Entries providing a photograph of the bird in its habitat, recognition clues, specific details on behavior, habitat, and local sites, plus a special "Field Note" with artwork for extra help in tricky identifications;
Alphabetical Index with life list; and
Color-coded Index.

Colorado is a unique birding spot, with mountain terrain and flatlands, each with its own characteristic mix of birds. Noted species include the grouselike White Ptarmigan; the incomparable Golden Eagle; the American Dipper; the Eared Grebe, and the chestnut-colored Longspur.
National Geographic Field Guide to the Water's Edge: Beaches, Shorelines, and Riverbanks
Taschenbuch
23,49 €
The book guides the exploring naturalist to water's edge destinations throughout North America including Canada and Alaska.

Main sections of the book cover three ocean coastlines--Atlantic, Gulf of Mexico, and Pacific; estuaries and wetlands; lakes, including the Great Lakes; and rivers, from the great Mississippi and Columbia to backyard streams. Identification guides and interesting information on plants, animals, shells, and other curiosities to be found along each water's edge accompany photographs and illustrations. Useful and inviting sidebars enhance every page:

· Shore Science--Quick hits and fascinating facts of science along the water's edge
· Stay Safe--Alerts about shoreline dangers and how to avoid or respond to them
· Beachcomber's Guide--Illustrated key to objects found in each beach and shoreline region
· Save the Shore--Notes on how humans can hurt--and help--shoreline ecology
· Best Water's Edge--Throughout, "Dr. Beach" recommends the top beach or shoreline destinations

The book is profusely illustrated with photographs, maps, and explanatory diagrams. An introductory section provides a thorough overview of the basic science of shorelines: How water interacts with land to form beaches; how various kinds of shorelines formed; why large waves are needed to form beaches; how floods and fast-moving water alters river shorelines; how the gravitational pull of the moon and sun cause the tides; why the oceans have tides but the Great Lakes don't; how tides affect rivers far inland; the effects of latitude and climate on the formation of shorelines, including variations in plants and animals. This opening sets up all the science necessary to understand and use the rest of the book.
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