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Yellow Weaver Ploceus megarhynchus

IUCN Red List Criteria

Critically Endangered  
Endangered  
Vulnerable A2cd+3cd+4cd;C2a(i) 

IUCN Red List history

Year Category
2012 Vulnerable
2008 Vulnerable
2004 Vulnerable
2000 Vulnerable
1996 Vulnerable
1994 Vulnerable
1988 Threatened

Species attributes

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

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 67,100 medium
Number of locations 11-100 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor Estimated 2000
Population trend Decreasing poor -
Number of subpopulations 2-100 - - -
Largest subpopulation 251-1000 - - -
Generation length (yrs) 4 - - -
Population justification: The population is estimated to number 2,500-9,999 mature individuals, based on an analysis of records in BirdLife International (2001) suggesting the population is unlikely to exceed 10,000 individuals and may well fall well short of this. This equates to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals. However, it has been suggested that the total population could number fewer than 3,000 mature individuals (R. Bhargava per A. Rahmani in litt. 2012).
Trend justification: A rapid and on-going population decline is suspected to be occurring, owing to the conversion of terai habitats for agriculture, as well as the effects of trapping for the cage-bird trade. The recent disappearance of colonies from previously occupied sites supports this projected trend.

Country/Territory distribution

Country/Territory Occurrence status Extinct Breeding Non-breeding Passage
India Native No      
Nepal Native No      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
India Buxa Tiger Reserve (National Park) site factsheet
India Dibru - Saikhowa Complex site factsheet
India Hastinapur Wildlife Sanctuary site factsheet
India Jaldapara Wildlife Sanctuary site factsheet
India Kaziranga National Park site factsheet
India Kurra Jheel site factsheet
India Manas National Park site factsheet
India Okhla Bird Sanctuary site factsheet
India Orang National Park site factsheet
India Pabitora Wildlife Sanctuary site factsheet
India Sultanpur National Park site factsheet
Nepal Koshi Tappu Wildlife Reserve and Koshi Barrage site factsheet
Nepal Sukla Phanta Wildlife Reserve site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable resident
Artificial/Terrestrial Plantations suitable resident
Grassland Subtropical/Tropical Seasonally Wet/Flooded major resident
Altitude 0 - 0 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & Aquaculture Annual & perennial non-timber crops / Agro-industry farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact:
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & Aquaculture Annual & perennial non-timber crops / Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact:
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & Aquaculture Livestock farming & ranching / Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact:
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & Aquaculture Wood & pulp plantations / Agro-industry plantations Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact:
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & Aquaculture Wood & pulp plantations / Small-holder plantations Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact:
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Gathering terrestrial plants / Unintentional effects (species is not the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals / Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact:
Stresses
Species mortality

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2013) Species factsheet: Ploceus megarhynchus. Downloaded from http://www.birdlife.org on 21/05/2013. Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/05/2013.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Vulnerable
Family Ploceidae (Weavers and allies)
Species name author Hume, 1869
Population size 2500-9999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 67,100 km2
Country endemic? No
Links to further information
- Summary information on this species