The authors report on a study of writing transfer using a relatively novel method. Specifically, they use screencast videos to study the work of a dozen undergraduates who had taken first-year writing and were now enrolled in an interdisciplinary biology class. The authors argue that students were able to adapt to the writing requirements in the biology class because they implicitly understood themselves to be engaged in Carter's metagenre of "research from sources." Because students in this study had been asked to engage in that metagenre at least since high school, they believed their writing habits were established well before first-year writing, and consequently they have trouble recognizing the influence of such a course on their subsequent work. The study also revealed that students coordinated multiple texts simultaneously in order to engage in processes akin to what Howard has called "patchwriting" but also similar to the habits of professional writers. Whereas professional writers have well established networks for seeking information, the students in this study worked in relative isolation, using a few sources found haphazardly through library or Google searches. The authors suggest that instructors spend more time helping students develop effective networks of information, including experts and organizations in addition to published sources.