http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 volume (unpaged) : color illustrations, map ; 25 x 28 cm.
Follows a barn swallow, a monarch butterfly, and an eel from summer on a farm until they make their respective fall voyages south, and then later begin to return north again when the weather warms. Includes facts about the animals.