All three are believed to reach or exceed 3.16 m (10.4 ft) and are regarded as having the largest wingspan of any landbirds (that is species who live over land as opposed to tied to the sea or wetlands).[3] Standing up to 1.53 m (5.0 ft), with a wingspan of up to 2.3 m (7.5 ft) and a weight up to 5 kg (11 lb) is the African goliath heron (Ardea goliath), the largest of the diverse and well-known herons and egrets.