Life cycles : the singing mailbox /
by Jane Belk Moncure ; illustrated by Susan Lexa-Senning ; created by the Child's World.
- Chicago, Ill. : Distributed by Childrens Press, c1990.
- 32 p. : col. ill. ; 23 cm.
- Discovery world .
Willie watches the activities of two wrens as they build a nest in his mailbox, hatch several eggs, and teach their babies how to fly. Includes facts on the life cycles of the wren, frog, and butterfly.