Cocke, Joshua 2016"Observations of Aleutian Cackling Geese (Branta hutchinsii leucopareia) breeding on Buldir Island, Alaska: forty-seven years after the rediscovery of a remnant population" in Wildfowl2013"Recovery of the Aleutian Cackling Goose Branta hutchinsii leucopareia: 10-year review and future prospects" in Wildfowl
