The Night Fairy by Laura Amy Schlitz

A bat mistakes Flory, a young fairy, for a moth and crunches up her wings. Falling into a beautiful garden, she lands in a cherry tree and makes her home there. As egocentric as any young child, Flory is sensitive mostly to her own needs and emotions until a series of experiences challenge her assumptions and awaken new feelings within her. When she finds a hummingbird trapped in a spider’s web, she resolves to save the bird, but the task becomes increasingly complex and dangerous.