Curve-billed Tinamou vs Grey Tinamou
Nothoprocta curvirostris 比較対象 Tinamus tao
Side-by-Side Comparison
| 属性 | Curve-billed Tinamou | Grey Tinamou |
|---|---|---|
| 学名 | Nothoprocta curvirostris | Tinamus tao |
| 目 | Tinamiformes | Tinamiformes |
| 科 | Tinamidae | Tinamidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 32.0 cm (12.6 in) | 55.7 cm (21.9 in) |
| 体重 | 376.0 g (13.26 oz) | 1674.5 g (59.07 oz) |
| 食性 | Grazes grasses and sedges in Asian wetlands; dabbles for aquatic invertebrates; forms large flocks; migratory … | Herbivorous tinamou feeding on seeds, fruits, and tender leaves in Andean foothills; occasionally takes insects … |
| 一腹卵数 | 2-4 | 2-9 |
| Population Trend | — | — |
Habitat Comparison
Curve-billed Tinamou
High puna grassland, paramo, and scrubby slopes at 3,000–4,500 m in the Andes of Ecuador and northern Peru. Associated with wet paramo, cushion bogs, and rocky terrain.
Grey Tinamou
Tropical and subtropical humid montane forest from Venezuela and Colombia south to Bolivia and northern Brazil at 200–1,800 m. Favors dense undergrowth near forest streams. Nests on the ground among leaf litter.
Song & Call Comparison
Curve-billed Tinamou
A soft, falling 2-note whistle from Andean cloud forest edges. Carries well through mist-shrouded vegetation. Considered a quieter species overall among highland tinamous.
Grey Tinamou
A series of haunting, flute-like hollow whistles 'whooo-wooo' delivered at dawn and dusk from within humid forest. Mournful, far-carrying quality typical of large forest tinamous.
Geographic Range & Migration
Curve-billed Tinamou
Restricted to the Atlantic Forest of southeastern Brazil (Rio de Janeiro, São Paulo, Minas Gerais). Sedentary; critically threatened.
Grey Tinamou
Found in open habitats across South America from Colombia and Venezuela to Chile and Argentina. Sedentary; some local altitudinal shifts.
保全状況
Curve-billed Tinamou
Grey Tinamou
How to Tell Them Apart
Curve-billed Tinamou
Brown upperparts with blackish vermiculations and buff streaks. Distinctive curved bill. Pale supercilium. Breast spotted on pale buff; belly whitish. Flanks barred. Andean cloud forest species.
Grey Tinamou
Uniform dark slate-gray upperparts finely vermiculated with black. Throat whitish; breast pale gray. Flanks barred with dark brown. Sexes similar; cryptic plumage suits humid forest floor.
About These Birds
Curve-billed Tinamou
A small compact tinamou with a notably long decurved bill, brown-streaked plumage, and pale underparts. Found in high Andean grasslands in Ecuador and Peru. The curved bill is adapted to probing soil for invertebrates and tubers in puna habitats.
Grey Tinamou
グレイティナムはアンデス山脈東部の斜面に生息する大型のシギダチョウです。灰色の羽毛が特徴的です。