While pulling weeds and planting seeds with her dad on Hazel Ridge Farm's prairie, Heather discovers a wood duckling alone in the grass. Worried for the duckling's safety, Heather asks her dad if she can care for him. "You have to keep him safe and warm and fed. You have to teach him how to be a duck--to swim, to hunt for bugs, and how to fly." Aptly named Mr. Peet for his chirping sound, the ducking accompanies Heather as she feeds the chickens, rabbits, and horses. They spend the summer swimming together in the pond, and Mr. Peet eventually masters how to fly. Heather becomes concerned when she hasn't seen Mr. Peet in 10 days. Her dad reassures her that the wood duck may have found his own place in nature. Heather is proud of her work and she knows Mr. Peet will be ok, because she loved him just enough.