Skuas and Jaegers

Skuas and Jaegers PDF Author: Klaus Malling Olsen
Publisher: A&C Black
ISBN: 1408189070
Category : Nature
Languages : en
Pages : 191

Book Description
Skuas (and jaegers) are a fascinating and popular group of seabirds that make up a subfamily of just seven species. They can be divided into two main groups: the larger species of Catharacta skuas which are mainly found in the southern hemisphere (with Great Skua breeding in the north), and the three Stercorarius species (also known as jaegers) which breed in the northern hemisphere. Both northern and southern skuas breed at high latitudes and several species are long-distance migrants, performing spectacular migrations through most of the world's oceans, sometimes even flying overland. The individual plumage variation in some species is enormous, creating one of the most puzzling yet fascinating challenges in modern field identification. This is the first complete identification guide to the skuas of the world. It is designed to enable species identification and correct ageing, and the information presented is based on years of study in the field, detailed examination of photographs and museum skins, and extensive research of the relevant literature. The comprehensive text is accompanied by twelve exquisite colour plates by Hans Larsson, illustrating a wide range of plumages. In addition, there are eight pages of colour photographs and numerous black and white photographs and drawings that show key identification features. With this book, the seabird enthusiast should at last be able to identify almost every skua encountered, whether on a seawatch or at sea.

Skuas and Jaegers

Skuas and Jaegers PDF Author: Klaus Malling Olsen
Publisher:
ISBN: 9789074345149
Category : Catharacta
Languages : en
Pages : 190

Book Description
Skuas (and jaegers) are a fascinating and popular group of seabirds that make up a subfamily of just seven species. The individual plumage variation in some species is enormous, creating one of the most fascinating challenges in modern field identification. This is the first complete identification guide to the skuas of the world. It is designed to enable species identification and correct aging, and the information presented is based on years of study in the field, detailed examination of photographs and museum skins, and extensive research of the relevant literature. The comprehensive text is accompanied by twelve exquisite color plates by Hans Larsson, illustrating a wide range of plumages. In addition, there are eight pages of color photographs and numerous black and white photographs and drawings that show key identification features. With this book, the seabird enthusiast should at last be able to identify almost every skua encountered, whether on shore or at sea.

Oceanic Birds of the World

Oceanic Birds of the World PDF Author: Steve N. G. Howell
Publisher: Princeton University Press
ISBN: 0691175012
Category : Nature
Languages : en
Pages : 360

Book Description
A state-of-the-art photographic field guide to the world's oceanic birds Oceanic birds are among the most remarkable but least known of all birds, living at sea, far from the sight of most people. They offer unusual identification challenges—many species look similar and it can be difficult to get good views of fast-flying birds from a moving boat. The first field guide to the world's oceanic birds in more than two decades, this exciting and authoritative book draws on decades of firsthand experience on the open seas. It features clear text filled with original insights and new information and more than 2,200 carefully chosen color images that bring the ocean and its remarkable winged inhabitants to life. Never before have oceanic birds been presented in such an accessible and comprehensive way. The introduction discusses the many recent developments in seabird taxonomy, which are incorporated into the species accounts, and these accounts are arranged into groups that aid field identification. Each group and species complex has an introductory overview of its identification challenges, illustrated with clear comparative photos. The text describes flight manner, plumage variation related to age and molt, seasonal occurrence patterns, migration routes, and many other features. The result is an indispensable guide for exploring birding's last great frontier. A comprehensive, authoritative, and accessible guide to oceanic birds Covers more than 270 species Includes more than 2,200 color photos with concise captions noting key features Features careful species comparisons, overviews of the latest taxonomy, tips on how to observe and ID birds at sea, and much more

Gulls of Europe, Asia and North America

Gulls of Europe, Asia and North America PDF Author: Klaus Malling Olsen
Publisher: A&C Black
ISBN: 1408135779
Category : Nature
Languages : en
Pages : 607

Book Description
This eagerly awaited guide offers the most comprehensive treatment ever published on the gulls of Europe, Asia and North America. A total of 43 species is treated, and every species is described in considerable detail, with a full description of each plumage and racial variation. Gulls are intelligent, versatile, opportunistic, and ecological generalists. As such, they exploit a variety of habitats, both coastal and inland, take a wide range of food, and are often extremely abundant. They are also great wanderers, with several American species regularly appearing in Western Europe and vice versa. As well as identification criteria, this book includes an up-to-date assessment of the range and status of every species, together with information on patterns of vagrancy. This important guide is published at a critical time in the development of dull taxonomy. The large, white-headed forms occurring in the region comprise a superspecies complex, with the precise relationships between the various components still under considerable debate. A thorough illustrative and textual treatment of the group is much needed, and this book provided the most complete overview of the complex. The text is complemented not only by superb colour paintings by Hans Larrson, but also by a large selection of colour photographs, sourced from some of the finest bird photographers in the world. This is the essential reference to a fascinating and endlessly challenging group of birds.

Seabirds

Seabirds PDF Author: Peter Harrison
Publisher:
ISBN: 9780395602911
Category : Birds
Languages : en
Pages : 0

Book Description
This is the definitive book on the seabirds of the world, describing virtually all the known species. Illustrated in color.

Birds of Europe, North Africa, and the Middle East

Birds of Europe, North Africa, and the Middle East PDF Author: Frédéric Jiguet
Publisher: Princeton University Press
ISBN: 0691172439
Category : Nature
Languages : en
Pages : 449

Book Description
The first comprehensive field guide to every bird species in Europe, North Africa, and the Middle East Birds of Europe, North Africa, and the Middle East is the first comprehensive pocket-sized photographic field guide to every bird species in Europe—this includes winter visitors and common migrants but also all rarities to the region, even if they have been recorded only once. The guide also covers hypothetical species—those that have a good chance of being recorded due to such factors as range expansion and changing weather patterns. The book's 2,200 stunning color photographs mean that every species is pictured, making field identification quick and easy. Succinct text covers key identification features, voice, habitat, and distribution, and distribution maps are provided for regular breeding species. Particular attention and details are given to help differentiate similar-looking species. Lavishly illustrated, up-to-date, and wide-ranging, Birds of Europe, North Africa, and the Middle East is an essential field guide for every naturalist and birder. First comprehensive field guide to all species recorded in Europe: resident, winter visitor, common migrant, and rarity 860 species covered using 2,200 photographs Includes every species from North Africa and the Middle East to have occurred in Europe

The Skuas

The Skuas PDF Author: Robert W. Furness
Publisher: A&C Black
ISBN: 1408136686
Category : Nature
Languages : en
Pages : 366

Book Description
A comprehensive monograph of the skua. Many birdwatchers may never have seen a skua; those who have will most probably have vivid memories of one or other species flying powerfully past a headland, or twisting and diving in pursuit of its piratical intentions towards a food-laden seabird - or, perhaps more memorably still, of themselves taking evasive action from the power-diving irate skua whose territory they have unwisely invaded. The full classification of the skuas is still debated, but Dr Furness of the Applied Ornithology Unit, Glasgow University, favours six species, of two genera, with five subspecies, based on current knowledge and his own long and dedicated field studies and research. All of the species are treated comparatively under the following chapter titles: Early history and classification, Distributions and populations, Migration patterns, Reversed sexual size dimorphism, Behaviour, Food and feeding, Kleptoparasitism, Plumage polymorphism, Breeding systems and social organisation, Breeding - laying to hatching, Breeding - hatching to fledging, Population dynamics, Pollutants, Skuas and agriculture, Skuas and conservation. The text is supported by 100 maps and diagrams, 30 photographs and 65 tables. In addition, John Busby contributes 35 evocative drawings which more than embellish this erudite and readable summary of an impressive and diverse group of birds. Jacket paintings by John Busby.

Evolution of reversed sexual size dimorphism in skuas and jaegers

Evolution of reversed sexual size dimorphism in skuas and jaegers PDF Author: P. CATRY
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description


The incidence of nonbreeding by adult great skuas and parasitic jaegers from Foula, Shetland

The incidence of nonbreeding by adult great skuas and parasitic jaegers from Foula, Shetland PDF Author: P. CATRY
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description


Birds of Southern South America and Antarctica

Birds of Southern South America and Antarctica PDF Author: Martín Rodolfo de la Peña
Publisher: HarperCollins (UK)
ISBN: 9780002200776
Category : Birds
Languages : en
Pages : 0

Book Description
Covers more than a thousand species. Accompanying text is full of facts.