Table of Contents

cover image

Volume 20, Number 14
16 July 2001

pp 3609-3891

Cover. Andean condors at Colca Canyon in Southern Peru. Andean condors (Vultur gryphus) are the largest flying birds, weighing up to 12 kg with a wing span of over 3 m. They feed mainly on large mammalian carrion but occasionally take the eggs or nestlings of seabirds. Freddy Frischknecht became interested in South American birds while working as a volunteer on a team led by Ana Agreda, an Ecuadorian biologist. He now works on plasmodium invasion at the Institut Pasteur, Paris.

View larger image