This series made its ambitious debuts in 1997 and 1999 with two videos covering North American gulls. Now it has tackled hummingbirds, a family famous for its powers of flight and iridescent colors, two attributes well suited to media capturing movement. As well as a conventional video cassette, this title (hereafter Hummingbirds) is available as a DVD that can be played on computers with CD drives and DVD software; the latter medium allows one to move around quickly within the video, which runs three hours. My review discusses layout and content as well as pros and cons of the media used.