NT
Great Thick-knee Esacus recurvirostris



Taxonomy

Taxonomic source(s)
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.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2017 Near Threatened A3cd
2016 Near Threatened A3cd
2013 Near Threatened A3cd
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency does not normally occur in forest
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 10,500,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - suspected 2000-2032
Rate of change over the past 10 years/3 generations (longer of the two periods) 10-25% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 25-29% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 10-25% - - -
Generation length 10.5 years - - -

Population justification: The population size has not been estimated here, but the species has been described as locally common (Hume and Kirwan 2017).

Trend justification: Precipitous declines have occurred in parts of South-East Asia, but trends in India, which now probably holds the bulk of the population, are less clear, making analysis of past population trends difficult. Nevertheless, the species is expected to undergo a moderately rapid reduction over the next three generations, as threats, such as dam construction and disturbance, increase in prevalence.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Bangladesh extant native yes
Cambodia extant native yes
China (mainland) extant native yes
India extant native yes
Iran, Islamic Republic of extant native yes
Laos extant native yes
Myanmar extant native yes
Nepal extant native yes
Oman extant vagrant yes
Pakistan extant native yes
Sri Lanka extant native yes
Thailand extant native yes
Vietnam extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Iran, Islamic Republic of Bahu Kalat (Gandu) Protected Area
Iran, Islamic Republic of Chahbahar Bay and Khor Konarak
Iran, Islamic Republic of Hormoz island
Iran, Islamic Republic of Khor Jask
Iran, Islamic Republic of Khouran Straits

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Subtropical/Tropical Dry marginal resident
Marine Intertidal Mud Flats and Salt Flats marginal resident
Marine Intertidal Rocky Shoreline marginal resident
Marine Intertidal Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc marginal resident
Marine Intertidal Shingle and/or Pebble Shoreline and/or Beaches marginal resident
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) suitable resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) major resident
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Reduced reproductive success
Human intrusions & disturbance Recreational activities Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Species disturbance
Human intrusions & disturbance Work & other activities Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Species disturbance
Natural system modifications Dams & water management/use - Large dams Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Ecosystem conversion

Recommended citation
BirdLife International (2024) Species factsheet: Great Thick-knee Esacus recurvirostris. Downloaded from https://datazone.birdlife.org/species/factsheet/great-thick-knee-esacus-recurvirostris on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/12/2024.