The document is a reading comprehension worksheet about the leveled book "Some Birds Go" by Marcie Aboff. It contains 5 questions that assess understanding of key details in the story, such as what some birds do (migrate to other places), why they migrate (to survive), what survive means (to live), what birds need to survive (warm weather and food), and if the birds return (yes). The worksheet provides space for answers and directs students to a website to check their work.