LC
Henslow's Sparrow Passerculus henslowii



Family: Passerellidae (New World sparrows)

Authority: (Audubon, 1829)

Red List Category

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Justification of Red List category
This species has an extremely 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 size is very large, and hence does not 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). The population trend now 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). Therefore, the species has been reassessed as Least Concern.



Population size: 390000

Population trend: Increasing

Extent of occurrence (breeding/resident): 2,030,000 km2

Country endemic: No

Attributes
Realm - Nearctic
Land-mass type - continent
USFWS - Bird of Conservation Concern
IUCN Ecosystem -- Freshwater biome
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2018) Species factsheet: Passerculus henslowii. Downloaded from http://www.birdlife.org on 11/12/2018. Recommended citation for factsheets for more than one species: BirdLife International (2018) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 11/12/2018.