Birds Beneficial and Harmful by Herman, Otto and Owen, JA (Jean Allen) is a study of the nature of birds in their relationship to humans. The authors describe in detail a variety of bird species that can be useful for agriculture, forestry, and environmental protection, as well as species that cause damage to crops and other bird species. The book contains vivid illustrations and important information about the behavior, life cycle and habitat of birds. Thanks to this book, readers will be able to better understand the role of birds in the ecosystem and the preservation of the natural environment.