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Tricoloured Blackbird Agelaius tricolor



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Red List Category

Criteria: A2bc+3bc+4bc

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Justification of Red List category
This colonially breeding species is listed as Endangered because available information indicates that it is undergoing very rapid declines owing to loss of its upland nesting habitat, low reproductive success in native habitats and complete breeding failure in harvested agricultural fields. A possible reduction in the rate of decline would lead to the species being downlisted to a lower threat category if confirmed.


Population size: mature individuals

Population trend: Decreasing

Distribution size (breeding/resident): 113,000 km2

Country endemic: No

Attributes
USFWS - Bird of Conservation Concern - Species listed by US Fish and Wildlife Service
Realm - Nearctic - realm
IUCN Ecosystem -- Freshwater biome
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2016) Species factsheet: Agelaius tricolor. Downloaded from http://www.birdlife.org on 03/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 03/12/2016.