Canada Goose (Branta canadensis) Feeding in the Stocks Reservoir, Hodder valley, in the Forest of Bowland, Lancashire, Canada Goose (Branta canadensis) The Canada Geese are feeding at Stocks Reservoir when the water level is at a very low level due to lack of rain in 2010. The algae is a bright green and yellow, almost fluorescent Originally introduced to Britain in St James Park, London in the mid 17th century,