Are You My Mother? (Carton of 72 Board Books)

A mother bird leaves her egg in the nest to go look for some food. While she's gone, the egg hatches, and the baby bird sets off to find his mother - but he doesn't know what she looks like. His search leads him to ask a variety of animals and machines, "Are you my mother?" Finally, a crane deposits him back in his nest, where his mother is waiting. Just the right amount of tension and the happy and secure ending make this an extremely popular story.