Renata and her Papi are hard at work at renovating their bathroom. Renata can't wait to build castles of bubbles in the deep, old-fashioned bathtub. But one morning, she finds dried leaves and pine needles heaped on a shelf in the corner. How did they get there? She soon realizes that a bird has built a nest on the shelf, and inside it are four rosy eggs! Weeks pass, and Renata watches as the wrens come and go, building a home in her bathroom... until, one day, with a little help from Renata, the birds are ready to fly.