Helm Identification Guides
1 total work
Skuas (or jaegers) are a popular group of seabirds. This title examines in detail all the identification problems associated with this difficult group. The taxonomy of the world's seven species of skuas has long been a subject of debate, compounded by the difficulty of distinguishing between the four catharacta species in the field. Klaus Malling Olsen and Hans Larsson are also the author and illustrator of "Terns of Europe and North America".