Skuas and Jaegers: A Guide to the Skuas and Jaegers of the World

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. COVER CONTENTS INTRODUCTION ACKNOWLEDGEMENTS TAXONOMY, RELATIONSHIPS AND CHARACTERISTICS THE SKUA SPECIES: A BRIEF OVERVIEW BREEDING BEHAVIOUR AGE DEVELOPMENT OF SKUAS SKUAS AND MAN OBSERVING SKUAS IN THE FIELD EXPLANATION OF THE SPECIES ACCOUNTS COLOUR PLATES SYSTEMATIC SECTION Great Skua: Catharacta skua Brown Skua: Catharacta antarctica Chilean Skua: Catharacta chilensis South Polar Skua: Catharacta maccormicki Pomarine Skua: Stercorarius pomarinus Arctic Skua: Stercorarius parasiticus Long-tailed Skua: Stercorarius longicaudus COLOUR PHOTOGRHAPS BIBILIOGRAPHY INDEX OF SCIENTIFIC AND ENGLISH NAMES A B C F G H I K L M O P S T