Curve-billed Tinamou vs Spotted Nothura
Nothoprocta curvirostris в сравнении с Nothura maculosa
Side-by-Side Comparison
| Характеристика | Curve-billed Tinamou | Spotted Nothura |
|---|---|---|
| Научное название | Nothoprocta curvirostris | Nothura maculosa |
| Отряд | Tinamiformes | Tinamiformes |
| Семейство | Tinamidae | Tinamidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 32,0 cm (12.6 in) | 24,8 cm (9.8 in) |
| Масса | 376,0 g (13.26 oz) | 256,0 g (9.03 oz) |
| Питание | Grazes grasses and sedges in Asian wetlands; dabbles for aquatic invertebrates; forms large flocks; migratory … | Migratory grazer feeding on grasses, sedges, and grain; winter diet heavily supplemented with cereal crops … |
| Размер кладки | 2-4 | 3-9 |
| 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.
Spotted Nothura
Pampas grassland, agricultural fields, pasture, and open scrubby areas from sea level to 3,000 m across Argentina, Uruguay, Paraguay, southern Brazil, and Bolivia. Very tolerant of human-modified landscapes.
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.
Spotted Nothura
A rapid, repeated whistle described as 'ki-ki-ki' or a trill. One of the most vocal and frequently heard South American tinamous in campos and grassland habitats.
Geographic Range & Migration
Curve-billed Tinamou
Restricted to the Atlantic Forest of southeastern Brazil (Rio de Janeiro, São Paulo, Minas Gerais). Sedentary; critically threatened.
Spotted Nothura
Restricted to the Andes of southern Chile and adjacent Argentina. Sedentary in Valdivian temperate forest at low to mid elevations.
Охранный статус
Curve-billed Tinamou
Spotted Nothura
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.
Spotted Nothura
Heavily spotted and streaked; buff and brown upperparts with bold dark spots. Pale central crown stripe; buff supercilium. Throat and belly white with spotted breast. Rufous in wings. Common and …
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.
Spotted Nothura
The most common and widespread nothura, with pale brown plumage heavily spotted with black and buff. Found in pampas grasslands, agricultural land, and open scrub across Argentina, Uruguay, Brazil, and Bolivia. Highly terrestrial; flies rarely. Calls with a rapid descending trill.