R.F Porter – författare
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4 produkter
4 produkter
Inbunden, Engelska, 2010
830 kr
Skickas inom 5-8 vardagar
For this third edition, the typematter has been reset throughout to accommodate the many revisions and additions to the text. The identification drawings, too, have been reviewed and lan Willis has amended or redrawn elements of most of the Figures and has provided several additional drawings. There are 70 new photographs in the section of plates which has now been increased to 96 pages with a total of 248 photographs. The identification of the diurnal birds of prey is especially difficult. There is wide variation in plumage among some species, especially the eagles and buzzards, and in all species general outlines and wing positions are much affected by the prevailing conditions, by wind and light, and by the bird's behaviour at the time. Often, too, the birds are only sighted at long range, and the authors believe that when travelling extensively in Europe even the expert cannot hope to identify more than seventy per cent of the raptors seen. In the book, the 38 European species have been grouped into seven sections. Each section brings together those species with similar field characters between which confusion can so often, and so easily, arise. Each group has an introductory comparative text and drawings, and the species within the groups are then treated individually. The text, succinct and detailed as it is, is greatly enhanced by lan Willis's fine drawings, and there are 248 photographs especially chosen to illustrate aspects of identification. The book has a final section summarising the legal status of birds of prey in European countries. Jacket drawings are by Ian Willis
E-bok
PDF, Engelska, 2010908 kr
Läs direkt efter köp
The various Red Data Books prepared by the IUCN and ICBP have set the standards for recognizing birds close to or at risk of extinction worldwide. This book, by focusing on vulnerable species living in or visiting Britain, sets out to define the British situation and to clearly establish both the importance of British populations and our own responsibilities for contributing to bird conservation. Compiled by an editorial team drawn from the Nature Conservancy Council and the Royal Society for the Protection of Birds, it identifies 117 species that demand our care and attention. It includes species that breed in or visit Britain in small numbers and whose populations are threatened by natural or man-made circumstances. It also deals with birds that are common or numerous but which, due to their localized distribution worldwide, have the greater part of their European populations in British sites. Each of the species accounts provides up-to-date information on current populations, basic ecology, threats to the species and the legal protection and conservation measures now in force. General chapters deal with the state of Britain''s various habitats, legal matters and conservation action for the future. This book should mean that no-one, whether ornithologist, land manager or bureaucrat, can plead ignorance when future land-use changes or management decisions threaten an endangered, vulnerable or important bird species. Illustrated by Ian Willis.
Inbunden, Engelska, 2010
830 kr
Skickas inom 5-8 vardagar
E-bok
Engelska, 2013908 kr
Läs direkt efter köp
The various Red Data Books prepared by the IUCN and ICBP have set the standards for recognizing birds close to or at risk of extinction worldwide.This book, by focusing on vulnerable species living in or visiting Britain, sets out to define the British situation and to clearly establish both the importance of British populations and our own responsibilities for contributing to bird conservation.Compiled by an editorial team drawn from the Nature Conservancy Council and the Royal Society for the Protection of Birds, it identifies 117 species that demand our care and attention. It includes species that breed in or visit Britain in small numbers and whose populations are threatened by natural or man-made circumstances. It also deals with birds that are common or numerous but which, due to their localized distribution worldwide, have the greater part of their European populations in British sites.Each of the species accounts provides up-to-date information on current populations, basic ecology, threats to the species and the legal protection and conservation measures now in force. General chapters deal with the state of Britain''s various habitats, legal matters and conservation action for the future. This book should mean that no-one, whether ornithologist, land manager or bureaucrat, can plead ignorance when future land-use changes or management decisions threaten an endangered, vulnerable or important bird species.Illustrated by Ian Willis.