|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Masello, J. F.
||Butchart, S., Ekstrom, J., Fisher, S., Harding, M., Stattersfield, A., Symes, A.
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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and therefore does not 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:|
- 2016 – Least Concern (LC)
- 2012 – Least Concern (LC)
- 2009 – Least Concern (LC)
- 2008 – Least Concern (LC)
- 2004 – Least Concern (LC)
- 2000 – Lower Risk/least concern (LR/lc)
- 1994 – Lower Risk/least concern (LR/lc)
- 1988 – Lower Risk/least concern (LR/lc)
|Population:||The species is still common in many parts of its range in Argentina with only small range contractions reported in Córdoba (R. M. Fraga in litt. 2003). The population size of the four subspecies was estimated as follows by Masello et al. (2011): C. p. patagonus 43,330 nests, C. p. conlara 1,700 individuals, C. p. andinus 2,000 nests, C. p. bloxhami 5,000-6,000 individuals. Based on these figures, the total global population may number c.95,000 mature individuals.|
Trend Justification: The population is suspected to be in decline owing to ongoing habitat destruction and unsustainable levels of exploitation.
|Current Population Trend:||Decreasing|
|♦ Number of mature individuals:||95000||♦ 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|