A self-proclaimed "spring" bird with a broken wing discovers winter. Lyrical language describes the change of seasons happening around the injured nightingale: "The big brown bear lumbered off to its winter den….The geese were the first to leave, rising into the pale gray sky." Used to the sun on its feathers, the nightingale worries what will happen to it, but the other animals are kind, the rabbit sharing its knowledge and its underground den when it begins to snow, the squirrel sharing food, the woodpeckers teaching it about the children and their feeders, etc. Gradually, the nightingale learns how to survive the winter…and even enjoy it after a blizzard. Finally, spring arrives once again, and, its wing now mended, the nightingale sings as it takes off into the sky, the other animals looking on. Mason's digital illustrations combine the impressions of watercolors with the realism of oils, and though her very slightly anthropomorphic animals are a bit kinder than their real-life counterparts, they are adorable. She uses color to masterful effect to reflect the weather, changing seasons, and mood, the spreads sometimes in washed-out grays, other times tinged yellow by the setting sun or the bright blues and white of a sunny day after a snowstorm. The intense green of the final spread is spring itself. (This book was reviewed digitally.) The premise may be unrealistic, but this is nonetheless sweet. (Picture book. 3-7) Copyright (c) Kirkus Reviews, used with permission.