||Pluvianellus socialis Gray, 1846
||del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
||18-20 cm. Plump and subtly coloured dove-like wader. Pale grey above, dusky lores. Broad silvery grey breast band, getting darker towards distal end. Paler throat; rest of underparts white. White tail with dusky central rectrices and narrow whitish bar on dark grey wing, visible in flight. Dark bill. Bright red eye and pinker legs. Juvenile with buffy mottling on the grey parts. Similar spp. No other wader with that shape shares its unstreaked plumage pattern. Voice Rather vocal, delivers soft dove-like whistles and other calls. Hints Tame but hard to find. Always on the move in pebble lake-shores. The voice aids in locating it.
|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Imberti, I. & Schlatter, R.
||Benstead, P., Butchart, S., Capper, D., Mazar Barnett, J., Sharpe, C.J., Symes, A.
This species has a small global population which is threatened by predation plus degradation of its breeding and wintering habitat. It is classified as Near Threatened as there is presently no evidence that a decline is taking place.
|Previously published Red List assessments:|
- 2012 – Near Threatened (NT)
- 2008 – Near Threatened (NT)
- 2006 – Near Threatened (NT)
- 2004 – Near Threatened (NT)
- 2000 – Lower Risk/near threatened (LR/nt)
- 1994 – Lower Risk/near threatened (LR/nt)
- 1988 – Near Threatened (NT)
|Range Description:||Pluvianellus socialis is local and partially resident in the extreme south of Chile and south Argentina, with part of the population wintering north to the Valdés peninsula, south-central Argentina, and sometimes as far as Buenos Aires province (Narosky et al. 1993, Chiurla 1996, Piersma 1996a). The population is estimated to number fewer than 10,000 birds (R. Schlatter in litt. 2002 to Wetlands International), and other estimates suggest it may be considerably smaller. Significant recent concentrations of non-breeding birds have included 145 and 123 on the Gallego and Chico estuaries respectively (Argentina) in 1999 (Ferrari et al. 2003).|
Falkland Islands (Malvinas)
|♦ Continuing decline in area of occupancy (AOO):||Unknown|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||194000|
|♦ Continuing decline in extent of occurrence (EOO):||Unknown||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Continuing decline in number of locations:||Unknown|
|♦ Extreme fluctuations in the number of locations:||No|
|♦ Upper elevation limit (metres):||1200|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The population is estimated to number fewer than 10,000 individuals, and so is placed in the band 2,500-9,999 individuals (R. Schlatter in litt. 2002). This equates to 1,667-6,666 mature individuals, rounded here to 1,500-7,000 mature individuals.|
Trend Justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
|Current Population Trend:||Stable|
|♦ Number of mature individuals:||1500-7000||♦ Continuing decline of mature individuals:||Unknown|
|♦ Extreme fluctuations:||No||♦ Population severely fragmented:||No|
|♦ Continuing decline in subpopulations:||Unknown|
|♦ Extreme fluctuations in subpopulations:||No||♦ All individuals in one subpopulation:||No|