Fig. 1. Ringing recovery data for Red-billed Teal (Underhill et al. 1999). Black dots indicate release localities; red dots indicate recapture localities; dark blue lines connect release and recapture points of birds ringed at Barberspan, South Africa (SA). This figure demonstrates that a Red-billed Teal ringed at Barberspan could subsequently visit almost any wetland south of the Congo forests.