Red-kneed dotterel

Erythrogonys cinctus Gould, 1838

Order: Charadriiformes

Family: Charadriidae

New Zealand status: Native

Conservation status: Vagrant

Other names: redkneed dotterel, red kneed dotterel

Geographical variation: Nil

Red-kneed dotterel. Male. Whicker Rd Wetlands, Gillman, South Australia, January 2014. Image © Craig Greer by Craig Greer http://craiggreer.com

Red-kneed dotterel. Male. Whicker Rd Wetlands, Gillman, South Australia, January 2014. Image © Craig Greer by Craig Greer http://craiggreer.com

The red-kneed dotterel is a small, distinctively-coloured, long-legged plover, native to Australia and New Guinea. It typically inhabits shores of inland freshwater lakes and swamps, and brackish coastal lakes and lagoons, rather than tidal estuaries. In Australia, they move inland to breed after heavy rains, and then return to the coast as the interior dries out. One vagrant has reached New Zealand.

Identification

The adult red-kneed dotterel has a black head to just below the eyes, and a black nape and breast band which contrasts with the white triangle running from the chin and throat up the sides of the neck. The back, wings and tail are brown, with contrasting white feathering in front of the wings. The upper flanks have a chestnut patch, often obscured by the wings. The belly and undertail white. In flight, its brown wings have a broad white trailing edge on the tips of the secondaries and inner primaries. The bill is red with a black tip. The legs are long; pink to just below the “knee” and then grey. The sexes are alike. Juveniles have grey-brown on the head and nape, the breast band is absent or smudgy, and the chestnut flank patch is initially absent. Red-kneed dotterels have a hunched posture when feeding in shallow water or on the shoreline, or running along the water’s edge.

Voice: generally silent, but alarm call is described as wit  wit.

Similar species: the smaller and sleeker black-fronted dotterel has a similar white triangle surrounded by black on the neck and head, but the top of its head, above the eyes, is white and brown, it has a dark carpal bar, and distinctive black wingtips in flight. Shore plover are slightly larger and also have white and brown above the eyes.

Distribution and habitat

Red-kneed dotterels are distributed widely in Australia and southern New Guinea, mainly in the south-east of the Australian mainland. They are nomadic; heading inland to breed following heavy rains and returning to coastal areas as the ephemeral wetlands dry out. Red-kneed dotterels are generally associated with fresh or brackish lakes and lagoons rather than tidal estuaries and beaches. They are vagrant to Tasmania and New Zealand.

New Zealand records

One New Zealand record: Manawatu River estuary, March 1976.

Behaviour and ecology

Outside the breeding period, red-kneed dotterels are solitary or associate with others in small loose flocks. They are active and run quickly along the water’s edge when searching for prey, or when disturbed. They often feed while wading and will sometimes swim.

Food

Red-kneed dotterels eat aquatic invertebrates and their larvae.

Websites

http://en.wikipedia.org/wiki/Red-kneed_Dotterel

http://www.birdlife.org/datazone/speciesfactsheet.php?id=3146

References

Robertson, H.A.; Dennison, M.D. 1977. Red-kneed dotterel (Charadrius cinctus) – first record for New Zealand. Notornis 24: 193-194.

Recommended citation

Robertson, H.A. 2013 [updated 2017]. Red-kneed dotterel. In Miskelly, C.M. (ed.) New Zealand Birds Online. www.nzbirdsonline.org.nz

Red-kneed dotterel

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