Harriers are a charismatic group of birds of prey with a worldwide distribution that have long fascinated bird watchers and scientists. Here for the first time the biology of the world's harriers is treated within one over, in readily accessible language. There are detailed comparisons of northern and southern species, descriptions of mating systems and population dynamics life histories, and insights into the selection pressures shaping the birds' life histories. The author addresses such questions as how females choose partners against their apparent self- interest, how they adjust to prevailing circumstances to produce the perfect clutch size, and what underlies variations in size dimorphism and copulation patterns. New information resulting from a DNA examination of the group reveals three new harrier species and allows construction of a new phylogeny of the harriers. The author's twin brother brings the book to life by fine original line drawings of these impressive birds. It will be a treat for all raptor biologists, amateur raptophiles, and behavioral ecologists interested in birds of prey.

Detailing novel research methods, this compilation presents major advances in fundamental aspects of phylogeny, mating, parental care, the trophic structure of Raptor communities, demography, behavioral ecology, species diversity, and the evolution of avian ontogenies. The book also features the most extensive list of international references available on raptor diet and feeding behavior and nocturnality. Current Ornithology is the only English-language publication currently devoted exclusively to extensive reviews and synthesis of topics pertaining to all aspects of the biology of birds. Chapters fall under such diverse rubrics as ecology, evolution, behavior, phylogeny, behavioral ecology, anatomy and physiology, and conservation biology. All authors are leading authorities on their subjects, and each chapter is refereed by experts in the topics covered. Although all chapters focus primarily on birds, some topics, such as the social cognition of birds as compared to primates (Volume 13), have significant application to disciplines outside of ornithology. Current Ornithology aims to provide an accessible, up-to-date, accurate source of data and to contribute to conceptual generalization and unification across the biological sciences.

Small, noisy and colourful, the Teal is a familiar duck throughout the wetlands and waterways Europe and Asia. Once hunted extensively for the pot, its numbers have recovered and it is now one of our commonest species of waterfowl. A flagship species for wetland conservation, the Teal is also an excellent model species for ecological research, and this forms the spine of this new Poyser monograph. The Teal looks at distribution and trends in numbers, foraging ecology, breeding behaviour), population dynamics, management and conservation of teal, looking at both the Eurasian Common Teal and its North American equivalent, the Green-winged Teal (which until relatively recently was considered to be the same species). The book provides a scientifically robust account on which wetland managers, research scientists and the ornithological community may rely, with wider implicatons for the conservation and management of other waterfowl, and for ecological research in general.

This is the only comprehensive photographic field guide to the birds of the entire Indian subcontinent. Every distinct species and subspecies—some 1,375 in all—is covered with photographs, text, and maps. The guide features more than 4,000 stunning photographs, many never before published, which have been carefully selected to illustrate key identification features of each species. The up-to-date facing-page text includes concise descriptions of plumage, voice, range, habitat, and recent taxonomic changes. Each species has a detailed map reflecting the latest distribution information and containing notes on status and population density. The guide also features an introduction that provides an overview of birdlife and a brief history of ornithology in India and its neighbors. The result is an encyclopedic photographic guide that is essential for everyone birding anywhere in the subcontinent. Covers all 1,375 subcontinental bird species Features more than 4,000 stunning photographs to aid quick field identification Includes up-to-date facing-page text and range maps Contains concise descriptions of plumage, voice, habitat, and much more

Kites are a group of birds in the family Accipitridae, which also includes hawks, eagles, and harriers. They are known for their long wings and forked tails, which give them a distinctive, graceful flight. There are many different species of kites, found all over the world. They come in a wide range of sizes, from the small Black Kite, which has a wingspan of around 3 feet, to the much larger White-tailed Kite, which can have a wingspan of up to 6 feet. Kites are typically diurnal birds, which means they are active during the day. They are opportunistic hunters and feed on a wide variety of prey, including insects, small mammals, reptiles, and other birds. Some species, such as the Black Kite, are also known to scavenge on carrion. Kites are typically found in open areas such as grasslands, savannas, and wetlands. Some species, such as the White-tailed Kite, are found in more wooded areas. In some cultures, kites are considered to be symbols of good luck and prosperity. They are also used in traditional medicine and in some African cultures are used in traditional ceremonies. Kites are not considered to be threatened or endangered as a group, but some individual species may be at risk due to habitat loss and other human activities.

Periplus is proud to present the first comprehensive photographic guide to the birds of the Indian subcontinent. This ebook offers over 800 species and distinct sub-species and contains over 1,000 full-color photographs. Each species has a distribution map. Many of the photographs in this magnificent volume appear for the first time and have been carefully selected to show the most important features of the species illustrated. In several cases, different plumages or flight shots are included. The concise text provided vital information on the plumages, voice and habits of each species covered and includes new information. Over a hundred related species are also mentioned in the texts. The maps are accompanied by a note on the status and distribution. This ebook will enable accurate field identification in one of the world's most diverse avifaunal regions. Indispensable reading for all bird lovers.