Bird, Butterfly, Eel

Bird, Butterfly, Eel by James Prosek, Simon and Schuster Books for Young Readers, 2009, ISBN 978-0-689-86829-4
PS: Follows a bird, a monarch butterfly, and an eel from summer on a farm until they make their respective fall voyages south, then later begin to return north again when the weather warms. (BTW, this is one of the worst publisher summaries I have ever read...).
Beautifully illustrated and simply written story of 3 animals/insects that migrate south for the winter. Includes a good map to show the astonishing distances traveled by each. Good for first or second grade.