In this seminar, Steven Kelling, Director of Information Science at the Cornell Lab of Ornithology, will discuss a citizen-science effort called eBird. This project’s goal is to leverage the human power of observation to report birds’ movements and identify individual species, then aggregate and run computations on that information to provide a comprehensive picture of birds’ whereabouts. Using this project as an example, Kelling will address how Human/Computer Learning Networks lead to positive-sum outcomes in science.