Cerulean warblers are so tiny and active that binoculars are needed to appreciate them. They nest and forage high in the treetops. These gorgeous warblers mainly eat insects, sometimes catching them in flight! They are the fastest declining migratory songbird in North America, says ornithologist David Aborn.
Copyright 1997-2015 Journey North (www.learner.org/jnorth). All Rights Reserved. Search