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'Based on many years of personal research, and a thorough knowledge of the European literature, the authors provide an eminently readable account of the biology of the Common Buzzard. Whatever your interests in birds, I can recommend this book for its content of information and insight.' – Professor Ian Newton OBE, FRS, FRSE Soaring majestically on thermals with broad wings raised, the Common Buzzard is a familiar sight for many people across Eurasia. In fact, thanks to a remarkable ability to adapt to local conditions, it is now one of the most abundant hawks in the world. The Common Buzzard can exploit a variety of nest sites, and has an eclectic diet that ranges from earthworms and voles to woodpigeons and even deer carcasses. This is a species rich in paradoxes. Why does a hawk evolved for hunting small mammals thrive on invertebrates and carrion? How can a raptor renowned for dramatic territorial displays occur at such high densities? And why does such a large bird that can travel long distances spend so much time in small areas? Sean Walls and Robert Kenward delve deep into the ecology of the Common Buzzard to provide answers to these questions and many more, as well as examining the conservation conundrums raised by this bird. Bringing together a wealth of research on the species' origins, feeding behaviour and breeding, along with information on movement and survival from the authors' own studies, The Common Buzzard provides an invaluable insight into exactly what has enabled this marvellous raptor to return to old haunts to impress, inspire and connect people with nature.
The need to describe the relative intensity with which an animal uses different parts of its home range has been recognized for at least half a century. Such descriptions are particularly important for wide-ranging raptors with home ranges covering a variety of habitats, in studies of many tars, the description of internal range structure is addressed by describing a core range of most intensive use. However, there is still no broadly accepted definition of a core or method of objectively estimating core ranges. Here, we propose that a core range can be usefully defined by the exclusion of excursive activity with the assumption that behavior differs between core and excursive activities. Two methods of excluding excursive activity are presented for winter ranges of the Common Buzzard (Buteo buteo) in lowland U.K. The first involves subjective exclusion of outlying locations, using the outermost discontinuing in the utilization distribution (UD). Incremental Cluster Polygons are used to produce the UD because this method provides the closest spatial relationship to the animal locations and the most clearly defined discontinuities. The potential for error or bias in this subjective method may often be unacceptable, particularly for home ranges which do not have well-defined core areas. The second method is a new application of incremental cluster analyis that objectively excludes excursive locations. The objective and subjective approaches are compared, and implications of core range definition in habitat and sociality analysis of raptors are explored in the context of published analyses on raptors and other taxa.
Many of the encounters between farming and wildlife, especially vertebrates, involve some level of conflict which can cause disadvantage to both the wildlife and the people involved. Through a series of WildCRU case-studies, this volume investigates the sources of the problems, and ultimately of the threats to conservation, discussing a variety of remedies and mitigations, and demonstrating the benefits of evidence-based, inter-disciplinary policy.
Most bird books are designed to help you identify the birds that you've seen. This book is different. It is a species-by-species guide that shows you how to find and watch more than 250 species of birds that can be seen in Britain. Some are common; others are rare migrants or scarce breeding birds, but this book will tell you the best places to see and watch all of them. Sections include: - How to find including the best time of day, how to search the habitat and behavioural signs - Watching tips including ways to get close to the bird without disturbing it and how to attract it to your garden. - Super sites includes a short list of some of the best places to see the species. Readers will be able to see their most coveted species but also enjoy rewarding watching experiences that will enhance their understanding of the species, of bird behaviour and of key fieldcraft techniques.