• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Justification of Red List category
This species has a very 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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). 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). For these reasons the species is evaluated as Least Concern.

Population justification
The global population size has not been quantified directly. Based on density estimates of similar-sized congeners (C. cinereus: 3 mature individuals/km² in Peru; C. undulatus: 3 mature individuals/km² in Peru; Santini et al. 2018) and assuming that around 10% of the mapped range is occupied (i.e. 10% of 296,000 km²), the total population may number 88,800-296,000 mature individuals, rounded here to 80,000-300,000 mature individuals. The species is described as 'fairly common but patchily distributed' (Stotz et al. 1996).

Trend justification
The population trend has not been assessed directly. Forest loss over the past three generations (17.4 years) has been low within the range (potentially <10%; Global Forest Watch 2020). The species is however susceptible to fragmentation and disturbance, and is additionally threatened by hunting (A. Lees in litt. 2011, Cabot et al. 2020). As such, the rate of population decline may be larger than the rate of forest loss, and the species is tentatively assessed as declining at a rate of 10-19% over three generations.

Crypturellus atrocapillus is a little-known species, occurring in the Amazon lowlands of western Brazil, south-east Peru and north Bolivia (del Hoyo et al. 1992).

The species occurs in deciduous tropical forest as well as 'várzea' (seasonally flooded forest). It is also known from secondary forest and open areas with shrubs and grasses (del Hoyo et al. 1992).

The principal threat to the species is forest loss for cattle ranging and agricultural plantations (Bird et al. 2011). Furthermore, the species may be hunted in parts of its range (A. Lees in litt. 2011).

Conservation Actions Underway
None is known.

Conservation Actions Proposed
Expand the protected area network to effectively protect IBAs. Effectively resource and manage existing and new protected areas, utilising emerging opportunities to finance protected area management with the joint aims of reducing carbon emissions and maximizing biodiversity conservation. Conservation on private lands, through expanding market pressures for sound land management and preventing forest clearance on lands unsuitable for agriculture, is also essential (Soares-Filho et al. 2006). Campaign against proposed changes to the Brazilian Forest Code that would lead to a decrease in the width of the areas of riverine forest protected as Permanent Preservation Areas (APPs), which function as vital corridors in fragmented landscapes.

28-31 cm. Smallish, brown tinamou. Rufescent brown, with a blackish cap and dark, barred wing coverts, sometimes with buff spots or mottling. Female more heavily barred.

Text account compilers
Hermes, C.

Contributors
Butchart, S., Ekstrom, J., Lees, A. & Symes, A.

---

Recommended citation
BirdLife International (2024) Species factsheet: Black-capped Tinamou Crypturellus atrocapillus. Downloaded from https://datazone.birdlife.org/species/factsheet/black-capped-tinamou-crypturellus-atrocapillus on 23/11/2024.
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 23/11/2024.