Pitman, C. C. R. S. (1965) “The nesting and some other habits of Alopochen, Nettapus, Plectropterus and Sarkidiornis”, Wildfowl, 16, p. 7. Available at: https://tidsskrift.dk/Wildfowl/article/view/155145 (Accessed: 5 April 2026).