Wikipedia:Today's featured article/September 9, 2014

The willie wagtail is a passerine bird native to Australia, New Guinea, the Solomon Islands, the Bismarck Archipelago, and eastern Indonesia. It is a common and familiar bird throughout much of its range, living in most habitats apart from thick forest. Measuring 19.0–21.5 cm (7½–8½ in) in length, the willie wagtail is contrastingly coloured with almost entirely black upperparts and white underparts; the male and female have similar plumage. Three subspecies are recognised: one from central and southern Australia, another from northern Australia, and the third from New Guinea and islands in its vicinity. The willie wagtail is insectivorous and spends much time chasing prey in open habitat. Its name is derived from its habit of wagging its tail horizontally when foraging on the ground. Aggressive and territorial, the willie wagtail will often harass much larger birds such as the laughing kookaburra and wedge-tailed eagle. It has responded well to human alteration of the landscape and is a common sight in urban lawns, parks, and gardens. It was widely featured in aboriginal folklore around the country as either a bringer of bad news or a stealer of secrets.

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