Other Scientific Names
Schizoeaca perijana [BirdLife International (2004, 2008)], Schizoeaca perijana [Sibley and Monroe (1990, 1993)], Schizoeaca perijana [Stotz et al. (1996)]
Perijá Mts in northern Colombia and north-western Venezuela.
 
Population
Estimated population is 250 - 999 (2010) and decreasing.
Status EN
Habitat destruction and degradation due to narcotics cultivation, uncontrolled colonisation, cattle-ranching and mineral exploitation are the main threats.
For more information see BirdLife International Species Factsheet.
Perija Thistletail (Asthenes perijana) [XC771952]
by Ross Gallardy from Paramo Sabana Manaure, Cesar, Perija Mts, Colombia (call, song)
Perija Thistletail (Asthenes perijana) [XC445678]
by Julio Delgado from Los Robles La Paz, Cesar, Colombia (song)
Subspecies
No subspecies.
Forms a superspecies with other members of genus, as a series of non-overlapping mountain-top replacements, and all sometimes considered conspecific. Their vocalizations seem fairly close, but plumage patterns differ to an extent not found within species-level taxa in the Furnariidae.
Similar Species
White-chinned Thistletail (Asthenes fuliginosa) is dark chestnut-brown above with white eye-ring.
References
See References.