24 December 2004
Vol 306, Issue 5705

About The Cover

Cover image expansion

COVER A brightly colored male American redstart (Setophaga ruticilla) feeding its young. In this species, males that provide high levels of parental care late in the season molt during migration to the tropics and so produce less colorful feathers than those grown on the breeding grounds. See page 2249. [Image: J. P. O'Neill]