Justification of Red List category
Although this species may have a small range, it is not believed to 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 trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to 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). For these reasons the species is evaluated as Least Concern.
Population justification
The global population size has not been quantified, but the species is described as fairly common at high elevations on Auyan-Tepui and probably more numerous than the small number of records suggest in other parts of its range (Hilty 2003).
Trend justification
The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
This species was only known from six specimens taken on cerros Ptari-tepuí and Sororopán-tepuí, in south-east Bolívar, Venezuela, but is now thought to have a much wider distribution in the east Pantepuí (Barrowclough et al. 1997). In 1994, it was frequently encountered (and four specimens taken) on Auyán-tepuí, in the more humid northern tepuí, c.50 km distant from the original sites (Barrowclough et al. 1997), and vocalisations of an unknown tinamou on Chimantá-tepuí have also been tentatively assigned to this species (Medina Cuervo 1992). There are sight records from the Sierra de Lema (Hilty 2003). More recent records show that the species has also extended eastwards and towards areas south of Parupá, additionally occurring in parts of Guyana (eBird 2021, GBIF 2021). It is believed that the smaller number of records in past research is more related to low observer coverage and limited awareness of vocalisations than to genuine scarcity (C. Sharpe in litt. 2007).
On Ptari-tepuí and Sororopán-tepuí, it was recorded as inhabiting cloud forests at 1,350-1,800 m. More recent observations on Auyán-tepuí have been at c.1,500-1,700 m in forested and more scrubby areas (Barrowclough et al. 1997).
Fire, subsistence agriculture and hunting may present some threat (D. Ascanio in litt. 2007). However, rates of tree cover loss are <1% over three generations (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein); therefore, it is assumed that habitat loss is likely minimal. Much of the species' range also remains inaccessible and as such, the population is not considered largely at risk (Gomes and Kirwan 2020).
Conservation Actions Underway
The known range is entirely within protected areas and the species has been legally protected from hunting since 1996 (C. Sharpe, J. P. Rodríguez and F. Rojas-Suárez in litt. 1999).
Conservation Actions Proposed
Due to the inaccessibility of the species' range and the difficulty in observing the species, little is known about its life history and ecology (Gomes and Kirwan 2020). Therefore, survey efforts must be renewed. Population size and trends must also be investigated. The area in which the species occurs must continue to be protected. The exact impacts of threats must be researched.
28.5-30 cm. Mid-sized plain tinamou. Overall dark ruddy brown. Rufescent on breast with grey cheeks and throat. Pale iris. Voice Unknown.
Text account compilers
Fernando, E.
Contributors
Butchart, S., Ekstrom, J., Gilroy, J., Harding, M., Rodríguez, J., Rojas-Suárez, F. & Sharpe, C J
Recommended citation
BirdLife International (2024) Species factsheet: Tepui Tinamou Crypturellus ptaritepui. Downloaded from
https://datazone.birdlife.org/species/factsheet/tepui-tinamou-crypturellus-ptaritepui on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 22/12/2024.