. . . . . . . "1968-01-01T00:00:00Z"^^ . . "Anser albifrons" . . "Dactylis glomerata" . . "Owen, M. 1976. The Selection of Winter Food by White-fronted Geese. Journal of Applied Ecology 13:715-729." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .