Cozumel Thrasher Toxostoma guttatum

Family: Mimidae (Mockingbirds and thrashers)

Authority: (Ridgway, 1885)

Red List Category

Criteria: D

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Justification of Red List category
This formerly common species appears to have declined rapidly following a hurricane in 1988, with very few subsequent records, despite repeated surveys since then. A recent probabilistic assessment by Butchart et al. (2018) concluded that T. guttatum does not meet the threshold to be considered 'Possibly Extinct' and as such, despite only one unconfirmed sighting since 2004, the species likely remains extant. Any remaining population is likely to be tiny, and for these reasons it is treated as Critically Endangered. 

Population size: 1-49

Population trend: Decreasing

Extent of occurrence (breeding/resident): 150 km2

Country endemic: Yes

Land-mass type - oceanic island
Realm - Neotropical
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2023) Species factsheet: Toxostoma guttatum. Downloaded from on 10/06/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 10/06/2023.