Despite being a narrative nonfiction, Welcome to the World of Hummingbirds has text features like an index, table of contents and text boxes. This book can also be used when teaching the ACCURACY strategy of Trade a word/guess a word that makes sense.  Many primary science units are about animals, habitats, and ecosystems.  Talk with students about how their familiarity with new vocabulary they have learned in their science unit can help them read accurately.