Hindman, L. J., Harvey, IV, W. F. and Conley, L. E. (2014) “Spraying corn oil on Mute Swan Cygnus olor eggs to prevent hatching”, Wildfowl, p. 186–196. Available at: https://tidsskrift.dk/Wildfowl/article/view/153622 (Accessed: 16 December 2025).