Fig. 3. Distribution of (a) Magpie Goose (Anseranas semipalmata), (b) Wandering Whistling-Duck (Dendrocygna arcuata), (c) Cotton Pygmy Goose (Nettapus coromandelianus),(d) Pacific Black Duck (Anas superciliosa), (e) Grey Teal (Anas gracilis), and (f) Radjah Shelduck (Tadornis radjah) in Southeast Asia and Australasia. Source: Frith 1982, Wetlands International 2006. Wallace’s Line (solid line). Sources differ on the distribution and degree of range overlap in Wallacea of Grey Teal and the closely related Indonesian Teal (Anas gibberifrons) (cf., Kear and Hulme 2005).