The Spur-Winged Goose is the largest waterfowl found in Africa and the largest species of goose in the world. They are different to other geese because they have spurs (little spikey bits) on their wings which can sometimes be poisonous. They pick up the toxin from the Blister Beetle which is only found in certain parts of the goose’s habitat range. Spur-Winged Geese absorb poisons from toxic beetles they occasionally ingest, making their own flesh deadly to consume.