Norfolk Broads - The Broads are Britain's largest protected wetland and are home to a wealth of wildlife, especially birdlife. Amongst the waterfowl: Mallard, Coot, Moorhen, Great Crested Grebe, Greylag Goose, Canada Goose, Egyptian Goose. Larger birds include Grey Heron, Cormorant, Kestrel, Sparrowhawk and Bittern. The scarce Cetti's Warbler breeds in the Broads, and Britain's only breeding Common Cranes are found in the area. Among the rare insects is the Norfolk hawker, a dragonfly. Some of the broads are surrounded by fens, i.e. reed and sedge beds. Norfolk reed from the broads has been a traditional material for thatching houses.