|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Ekstrom, J., Butchart, S., Harding, M., Fisher, S.
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
|Previously published Red List assessments:|
- 2009 – Least Concern (LC) –
- 2008 – Least Concern (LC) –
- 2004 – Least Concern (LC) –
- 2000 – Lower Risk/least concern (LR/lc) –
- 1996 – Vulnerable (VU) –
- 1994 – Vulnerable (VU) –
- 1988 – Threatened (T) –
|Range Description:||The species has an apparently disjunct range: a population in north-west Patagonia (west Neuquén, west Río Negro and west Chubut, Argentina, and adjacent Chile in Ñuble, Malleco, Aysén and Concepción) may be geographically isolated from a southern population inhabiting the Patagonian mainland (south Santa Cruz, Argentina and Magallanes, Chile) and north Tierra del Fuego and Gable Island in the Beagle channel (Collar et al. 1992, Vuilleumier 1997, S. Imberti in litt. 1999). It is apparently partially migratory with birds recorded north to Valparaíso in Chile (Collar et al. 1992).|
|♦ Continuing decline in area of occupancy (AOO):||Unknown|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||193000|
|♦ 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):||1500|
|Range Map:||Click here to open the map viewer and explore range.|