During the summer months of June to September many hundreds of Canada geese can daily be seen heading northwards over Gwbert towards the Dyfi estuary marshes, returning each evening. These feral geese reside in the Teifi estuary and valley up as far as Newcastle Emlyn. They also graze on Cardigan Island, and the pond at Gwbert's Cardigan Island Farm Park also attracts geese (the farm has 3 tame geese) where, on some days, there will be a flock of over 100 Canada geese. Wild shelducks, teal, and mallard also nest at the farm.