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Variable Oystercatcher (Haematopus unicolor)

Variable Oystercatcher (Haematopus unicolor)
Variable Oystercatcher (Haematopus unicolor)

About Variable Oystercatcher (Haematopus unicolor)

  • Kingdom: Animals
  • Phylum: Chordates
  • Class: Birds
  • Order: Pelicans
  • Family: Oystercatchers


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2013

Assessor/s
BirdLife International

Reviewer/s
Butchart, S.

Contributor/s

Justification
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 increasing, 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 may be small, 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.

History
  • 2012
    Least Concern

International Union for Conservation of Nature and Natural Resources

Lifelists

Trips

Visits

  • 2012-01-03
    Stewart Island, New Zealand
    Image from 2012-01-03
  • 2012-01-09
    Fiordland National Park, New Zealand