With over 44 hectares (1,099 acres) of land Bushy Park is the second largest Royal Park in London, with an incredible range of wildlife, habitats and history within its walls. It is a largely semi-wild landscape and a Site of Special Scientific Interest (SSSI). Red and Fallow Deer roam freely throughout the park as they have done since Henry VIII used to hunt here. It has many ponds and streams, fed by water from the Longford River created by Charles I to bring water to Hampton Court Palace. The park has many bird species and its SSSI status is due to the insects and other invertebrates, with 123 scarce or threatened species recorded. The park has some 130 hectares of Acid Grassland which is a priority habitat for conservation. The grassland is populated by centuries-old ant hills, made by the Yellow Meadow Ant, often mistaken by visitors as Molehills. These anthills are still live and attract Green Woodpeckers which can often be seen. There are two Skylark nesting areas in the park and the ponds are nature reserves with many waterfowl and substantial fish numbers. The park's history is fascinating from before Cardinal Wolsey to the present day.