. . . . . . . "1979-01-01T00:00:00Z"^^ . . "Branta leucopsis" . . "Tracheophyta" . . "Prop, J., E.M.R. van, and R.H. Drent. 1984. Reproductive success of the barnacle goose Branta leucopsis in relation to food exploitation on the breeding grounds, western Spitsbergen. Norsk Polarinstitutt Skrifter 181:87-117." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .