Reed, A., Davison, M. A. and Kraege, D. K. (1989) “Segregation of Brent Geese Branta bernicla wintering and staging in Puget Sound and the Strait of Georgia”, Wildfowl, pp. 22–31. Available at: https://tidsskrift.dk/Wildfowl/article/view/154018 (Accessed: 16 December 2025).