The Egg Thief — Jack E. Jon

NOTE TO PARENTS - It starts with a sassy kid who has little problem obeying his parents. It's no wonder, then, that he finds himself in a dozen different kinds of trouble. Geared for children ages 5 to 8, in these magical stories recount the misadventure of a smart, irrepressible and gusty boy who finds out exactly what can go wrong when he doesn't follow his parent rules or take their advice. Children need and parents welcome the effect of instructive stories in their lives.
Tom noticed he was still holding a broken piece of a baby's shell. This was all that was left of what could have been a great Easter egg hunt, if only he wasn't in such a hurry. He learns about being patient and caring of the environment in The Egg Thief.