Brown Tinamou
Kastanientinamu ( Crypturellus obsoletus )
The Kastanientinamu ( Crypturellus obsoletus ) is a in many parts of South America quite common type of Tinamou.
Features
Kastanientinamus be 25 to 30 cm long, female birds 395-540, males 350-480 g. The plumage is mainly dark brown, walnut stained the underside brighter and above the legs dark banded. Head and neck throat are gray-brown, gray. The iris is orange, the legs are greenish. Young birds resemble the adult birds have on but the back and partially black on the wings points. Females are often brighter.
Dissemination
The circulation area ranges in southeastern Brazil from Bahia to Rio Grande do Sul, occupying the eastern half of Paraguay and Argentina, and parts of Venezuela, Ecuador, Peru and Bolivia. Preferred habitats are forest edges and clearings. Kastanientinamus live in low to medium altitudes in the Andes at altitudes of 2200 meters, in the south-east Peru and Bolivia, exceptionally, up to altitudes of 2900 meters.
Kastanientinamus belong in some regions the most common Steißhühnern. So they have become exceedingly common in southeastern Brazil and have probably benefited from population decline Steißhuhn other species, especially the Grausteißtinamu ( Tinamus solitarius ). In contrast, the Kastanientinamu in Colombia has been eradicated.
Subspecies
Nine subspecies have been described, which can be distinguished in size and coloring. In the upper part, pure black C. obsoletus traylori it could also be a separate species.
- C. obsoletus obsoletus, the nominate, Southeast Brazil, eastern Paraguay, northeastern Argentina.
- C. obsoletus castaneus, eastern and central Colombia and eastern Ecuador, northern Peru.
- C. obsoletus ochraceiventris, central Peru.
- C. obsoletus traylori, southeastern Peru.
- C. obsoletus punensis, southeastern Peru, northern Bolivia.
- C. obsoletus cerviniventris, northern Venezuela.
- C. obsoletus knoxi, northwestern Venezuela.
- C. obsoletus griseiventris, north and center of Brazil.
- C. obsoletus hypochraceus, south-west Brazil.
Way of life
Kastanientinamus feed on mainly seeds of laurel family, spurge and diamond plants. Follow the guidelines of the army ants to catch the insects that try to escape the army ants. On the forest floor, they turn leaves to catch the insects hidden underneath.
They breed in southeastern Brazil from September to November, in the southeast of Peru in October. The nest is built at the base of trees. The four to five eggs are dark pink, dark red or chocolate- colored, depending on the subspecies. They are incubated for about 19 days. The chicks have a dark head top.