Australian painted-snipe | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Charadriiformes |
Family: | Rostratulidae |
Genus: | Rostratula |
Species: | R. australis |
Binomial name | |
Rostratula australis (Gould, 1838) | |
The Australian painted-snipe (Rostratula australis) is a medium-sized, long-billed, distinctively patterned wader.
The distinctiveness of the Australian painted-snipe was recognised by John Gould in 1838 when he described and named it Rostratula australis. However, it was subsequently lumped with the greater painted-snipe Rostratula benghalensis. More recently it has been shown that the differences between these taxa warrant recognition at the species level. Compared with the greater painted-snipe, the Australian painted-snipe:
The head, neck and upper breast is chocolate brown (in the male, dark grey with a buff median stripe on the crown), fading to rufous in the centre of the hindneck and merging to dark, barred grey on the back. There is a cream comma-shaped mark around the eye. A white stripe on the side of the breast and over the shoulders is diagnostic. The upperwing is grey (with buff spots in the male). The lower breast and underbody are white. Males are generally slightly smaller and less bright than females. Juveniles are similar to adult males. No call has been recorded.
The length ranges from 24 to 30 cm, the wingspan from 50 to 54 cm, the weight from 125 to 130 g.
The Australian painted-snipe is endemic to Australia, though its distribution is patchy and its presence in any particular area is unpredictable. A previous stronghold was the Riverina. It frequents shallow, freshwater wetlands with a thick cover of low vegetation, disappearing when conditions become unsuitable.
The species has declined drastically during the 20th century and is rare throughout its range. Causes of the decline are ascribed to wetland drainage, river management and salinisation, as well as grazing and trampling of wetlands by stock. Estimates of the total population range from a few hundred to a few thousand. In Australia it is classified as being nationally threatened with a rating of Vulnerable. The IUCN recently split the species and treats it as endangered. [1]
Wetland invertebrates such as worms, molluscs, insects and crustaceans; also seeds and other vegetation.
Breeding painted-snipe prefer temporary but recently flooded wetlands, with low cover for shelter, shallow water and exposed mud for feeding, and small islands on which to nest. They nest in ground scrapes or on mounds in water, lined with grass, leaves and twigs, where they lay clutches of 3-4 cream-coloured eggs marked with black streaks. Incubation takes 15–16 days. The young are precocial and nidifugous.
The Rostratulidae, commonly known as the painted-snipes, are a family of wading birds that consists of two genera: Rostratula and Nycticryphes.
The killdeer is a large plover found in the Americas. It gets its name from its shrill, two-syllable call, which is often heard. It was described and given its current scientific name in 1758 by Carl Linnaeus in the 10th edition of his Systema Naturae. Three subspecies are described. Its upperparts are mostly brown with rufous fringes, the head has patches of white and black, and two black bands cross the breast. The belly and the rest of the breast are white. The nominate subspecies breeds from southeastern Alaska and southern Canada to Mexico. It is seen year-round in the southern half of its breeding range; the subspecies C. v. ternominatus is resident in the West Indies, and C. v. peruvianus inhabits Peru and surrounding South American countries throughout the year. North American breeders winter from their resident range south to Central America, the West Indies, and the northernmost portions of South America.
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Rostratula is a genus of painted-snipes. It contains two extant species distributed across Africa, Asia and Australia.