Barred Tinamou vs Cinereous Tinamou
Crypturellus casiquiare so với Crypturellus cinereus
Side-by-Side Comparison
| Thuộc Tính | Barred Tinamou | Cinereous Tinamou |
|---|---|---|
| Tên Khoa Học | Crypturellus casiquiare | Crypturellus cinereus |
| Bộ | Tinamiformes | Tinamiformes |
| Họ | Tinamidae | Tinamidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 27,0 cm (10.6 in) | 32,5 cm (12.8 in) |
| Khối Lượng | 287,625 g (10.15 oz) | 502,25 g (17.72 oz) |
| Chế Độ Ăn | Grazes grasses and aquatic vegetation near wetland edges; sedges and stems dominate diet; supplements with … | Feeds on seeds, berries, and insects in Neotropical forests; scratches leaf litter to expose invertebrates; … |
| Số Trứng | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Barred Tinamou
Restricted to humid lowland forest along the Casiquiare canal region of southern Venezuela and extreme northwestern Brazil. Associated with river-edge and flooded forest at low elevations. Rarely recorded.
Cinereous Tinamou
Lowland humid forest and forest edges in the Amazon and Orinoco basins from Venezuela and Colombia to Bolivia and central Brazil. Prefers dense understorey near water. Tolerates some secondary growth.
Song & Call Comparison
Barred Tinamou
A slow, hollow whistle from blackwater river forest of the upper Orinoco. Call is distinctive but rarely recorded given its restricted range on the Venezuela-Colombia border.
Cinereous Tinamou
A monotonous, deep whistle repeated at regular slow intervals. The call is a single, resonant 'whoooo' given from forest floor cover. Typical of lowland humid forest.
Geographic Range & Migration
Barred Tinamou
Inhabits savannas and forest edges of northeastern Brazil's semi-arid Caatinga region. Sedentary and endemic to this biome.
Cinereous Tinamou
Ranges through forests of Chile and adjacent western Argentina. Sedentary in temperate Valdivian forests from sea level to 1,500 m.
Tình Trạng Bảo Tồn
Barred Tinamou
Cinereous Tinamou
How to Tell Them Apart
Barred Tinamou
Heavily and boldly barred throughout; upperparts dark brown with broad black bars. Crown blackish; face pale. Throat whitish; breast and flanks strongly barred black and buff. Belly whitish.
Cinereous Tinamou
Uniform slate-gray upperparts; head, neck and breast also gray. Belly paler grayish-white. Lacks strong barring. Bill and legs dark gray. Sexes similar; cinereous refers to its ashy coloration.
About These Birds
Barred Tinamou
A small tinamou with distinctly barred brown-and-buff plumage. Restricted to the Casiquiare region of Venezuela and adjacent northwestern Brazil—one of the most restricted tinamou ranges. Nearly all data come from specimens. Inhabits humid lowland forest along river systems.
Cinereous Tinamou
A plain uniformly grey-brown tinamou with barred wings and a pale throat. Widespread in lowland Amazonian and Orinoco basin forests. Often detected by its loud two-note whistle. Males alone incubate the glossy teal-colored eggs. Feeds on fallen fruits, seeds, and invertebrates.