Variable Oystercatcher (Haematopus unicolor)

Variable Oystercatcher (Haematopus unicolor)
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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
- 2012Least Concern
International Union for Conservation of Nature and Natural Resources
Lifelists
Trips
Visits
-
2012-01-03Stewart Island, New Zealand
-
2012-01-09Fiordland National Park, New Zealand