The Masked Lapwing (Vanellus miles), previously known as the Masked Plover and often called the Spur-winged Plover or just Plover in its native range, is a large, common and conspicuous bird native to Australia, particularly the northern and eastern parts of the continent. It spends most of its time on the ground searching for food such as insects and worms and has several distinctive calls. This species is the largest representative of the family Charadriidae, at 35 cm (14 in) and 370 g (13 oz). There are two distinct races which until recently were thought to be separate species. The Northern Australian subspecies (Vanellus miles miles) has an all-white neck and large yellow wattles with the male having a distinctive mask and larger wattles. The subspecies found in the southern and eastern states (Vanellus miles novaehollandiae), and often locally called the Spur-winged Plover, has a black neck-stripe and smaller wattles. (Note that the northern-hemisphere Spur-winged Plover is a different bird.) The birds have a wide range of calls which can be heard at any time of the day or night: the warning call, a loud defending call, courtship calls, calls to its young, and others. Since this bird lives on the ground it is always alert and even though it rests it never sleeps properly.