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Marbled Murrelet Brachyramphus marmoratus



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Red List Category

Criteria: A2bc+3bc+4bc

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Justification of Red List category
This species is still abundant, but it is treated as Endangered because its population is estimated to have undergone a very rapid reduction, which is expected to continue, owing to a variety of threats.

Population size: mature individuals

Population trend: Decreasing

Distribution size (breeding/resident): 1,380,000 km2

Country endemic: No

Attributes
Land-mass type - continent - Continents are land masses > bigger than Australia (=7,682,300 sq km).
Land-mass type - oceanic island - Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally they have never been connected to a continental area by a land-ridge, and are volcanic in origin.
Land-mass type - shelf island - Continental islands include all other islands or island groups. Generally they were once part of continents and lie on a continental shelf of < 200 m sea depth.
Realm - Nearctic - realm
IUCN Ecosystem -- Freshwater biome
IUCN Ecosystem -- Marine biome
IUCN Ecosystem -- Terrestrial biome
USFWS - Bird of Conservation Concern - Species listed by US Fish and Wildlife Service

Recommended citation
BirdLife International (2016) Species factsheet: Brachyramphus marmoratus. Downloaded from http://www.birdlife.org on 06/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 06/12/2016.