Watch What is a Gannet?

Real life explorer Sarah visits 'Gannet Rock' on the British Channel Island of Alderney to learn about a seabird called a 'gannet'. It has a wingspan of 2m and can dive at speeds of 100mph. The population here are doing well because of a decline in fishing during World War II. They even have tracking devices on them so that you can follow them as they migrate each summer.