Our understanding of the status of vagrant hummingbirds across eastern North America has changed dramatically over the past three decades (Conway and Drennan 1979; see fall and winter seasonal reports in American Birds/Field Notes). Although an increase in hummingbird feeders and observers’ expertise has undoubtedly contributed to our knowledge of extralimital hummingbirds, Hill et al. (1998) hypothesized that the significant increase in transient and wintering Rufous Hummingbirds (Selasphorus rufus) in the East is primarily a result of a relatively recent change in this hummingbird’s innate migratory behavior.