North America

In response to numerous complaints from fruit growers concerning depredations by birds in orchards and vineyards in the Pacific coast region, the investigation of the subject was undertaken by the Biological Survey.

Two distinct groups of finches or sparrows are commonly known as grosbeaks. One of these, which includes the pine and evening grosbeaks, is of little practical importance, since its members breed and pass most of their lives in mountainous regions, or in the northern parts of North America. The other group includes the cardinal, gray, rose-breasted, black-headed, and blue grosbeaks, which spend either the summer or the entire year within agricultural regions of the United States.

According to Roosevelt this volume is meant for the lover of the wild, free, lonely life of the wilderness, and of hardy pastimes known to sojourners therein.

In this book the author puts down his observations on the American deer and antelopes. The author does not go further into the osteology and anatomy of these animals and leaves this almost entirely in the hands of others. 

This book is a catalogue of books concerning american game mammals and birds. These books range from a very specific focus on the american game mammals and birds to the tangentially related books.

The present volume is the first of a series of monographs designed to make known to science the extinct vertebrate life of North America.

Investing in nature and Nature-based Solutions is an important pathway to address the current ecological crisis. The loss of biodiversity, with around one million animal and plant species threatened with extinction, is putting at risk our economies, livelihoods, food security, health, and quality of life worldwide. Diverse and innovative measures are needed to reverse this decline and to restore healthy ecosystems.

The northwest boreal region of North America is a land of extremes.

North America's freshwater habitats and the extraordinary biodiversity they contain are facing unprecedented threats from a range of sources. As an initial step in identifying those areas where protective and restorative measures should be implemented first, World Wildlife Fund-US assembled a team of leading scientists to conduct a conservation assessment of freshwater ecoregions. Freshwater Ecoregions of North America presents that assessment and outlines measures tha