Summary.1The biology of the Cape Wagtail, supplemented by data collected from the study of a partial albino female, is described. The pairs have territories which they would appear to hold for years, the partial albino having been around the same farmstead for about eleven years.2The main breeding season is from August to November but may extend through the summer. The male presents nest material to the female.3The partial albino female had a song not shared by the male.4She laid eight clutches (Sept. 1947‐Aprit 1948), the incubation periods of which ranged from 13½ to 14½ days.5Nestling period ranged from 14 to 18 days.6Roosting may be communal or in pairs.7The species is parasitised by the Diederick Cuc