Barred Tinamou vs Lesser Nothura
Crypturellus casiquiare เปรียบเทียบกับ Nothura minor
Side-by-Side Comparison
| คุณสมบัติ | Barred Tinamou | Lesser Nothura |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Crypturellus casiquiare | Nothura minor |
| อันดับ | Tinamiformes | Tinamiformes |
| วงศ์ตระกูล | Tinamidae | Tinamidae |
| สถานะการอนุรักษ์ | Least Concern | Vulnerable |
| ความยาว | — | — |
| กว้างปีก | 27.0 cm (10.6 in) | 22.0 cm (8.7 in) |
| น้ำหนัก | 287.625 g (10.15 oz) | 163.33333333333334 g (5.76 oz) |
| อาหาร | Grazes grasses and aquatic vegetation near wetland edges; sedges and stems dominate diet; supplements with … | Eats grasses, seeds, and aquatic plants; migratory; supplements diet with invertebrates in breeding season across … |
| จำนวนไข่ | -- | 2-4 |
| 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.
Lesser Nothura
Native campo sujo and campo limpo grasslands of the cerrado biome in central Brazil. Highly dependent on intact native grassland with bunchgrass structure; very sensitive to exotic grass invasion and burning.
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.
Lesser Nothura
A thin, high whistle, poorly documented due to its vulnerable status and restricted campos habitat in interior Brazil. Rarely recorded; calls are considered similar to Spotted Nothura.
Geographic Range & Migration
Barred Tinamou
Inhabits savannas and forest edges of northeastern Brazil's semi-arid Caatinga region. Sedentary and endemic to this biome.
Lesser Nothura
Found in open grassy habitats of central South America from Bolivia and Brazil to Argentina. Sedentary; forages in short grassland.
สถานะการอนุรักษ์
Barred Tinamou
Lesser Nothura
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.
Lesser Nothura
Tiny cerrado tinamou; brown upperparts with fine buff and black streaking. Pale supercilium. Throat and breast buff-white spotted brown. Belly whitish. Smallest Nothura; threatened grassland specialist.
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.
Lesser Nothura
A very small tinamou with finely streaked brown plumage and whitish underparts. One of the smallest tinamous. Restricted to the cerrado campos and grasslands of central Brazil. Critically Endangered due to loss of native cerrado. Calls with a thin high-pitched whistle.