Swifts : a guide to the swifts and treeswifts of the world
"Swifts pose some of the most difficult field identification problems and it is the aim of this guide to provide information that will help resolve many of these problems. For the first time all 96 species of swifts and treeswifts are included in a single volume." "The 24 colour plates have been designed so that, wherever possible, species that can be confused are shown together. All species and, wherever relevant, all distinct plumage differences have been illustrated in flight, from above and below. The main field characteristics are highlighted in the accompanying caption text to facilitate the separation of species whose ranges overlap." "The comprehensive text has a strong emphasis on identification and distribution, but also includes information on habitat, voice, habits and breeding. The species' descriptions are very detailed, often describing features that are not easily visible in the field but which may contribute to the overall appearance of the bird. They are intended to be useful both in the field and in the hand. A range map accompanies each species account and many line drawings are included to illustrate specific features."--BOOK JACKET
Print Book, English, 2000
2nd ed
Pica Press, Mountfield, East Sussex, 2000