Grey-legged Tinamou vs Great Tinamou
Crypturellus duidae so với Tinamus major
Side-by-Side Comparison
| Thuộc Tính | Grey-legged Tinamou | Great Tinamou |
|---|---|---|
| Tên Khoa Học | Crypturellus duidae | Tinamus major |
| Bộ | Tinamiformes | Tinamiformes |
| Họ | Tinamidae | Tinamidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 32,6 cm (12.8 in) | 48,2 cm (19.0 in) |
| Khối Lượng | 429,5 g (15.15 oz) | 1006,75 g (35.51 oz) |
| Chế Độ Ăn | Ground-gleaner taking seeds, berries, and arthropods in Amazonian forests; invertebrate proportion rises in wet season. | Ground-forager eating seeds, fallen fruits, and small invertebrates in Chilean matorral scrub; pecks and scratches … |
| Số Trứng | -- | 3-6 |
| Population Trend | — | — |
Habitat Comparison
Grey-legged Tinamou
Montane forest and shrubby tepui slopes at 600–1,800 m on isolated table-mountains in southern Venezuela and adjacent northern Brazil. Restricted range; known from very few locations.
Great Tinamou
Humid lowland and foothill tropical rainforest from southern Mexico through Central America to Bolivia and southeastern Brazil. Prefers undisturbed forest interior with dense understorey. Nests on the ground.
Song & Call Comparison
Grey-legged Tinamou
A series of hollow whistles with a slightly husky tone. Calls from dense forest floor cover in tepui foothills. Considered vocally conservative among Crypturellus tinamous.
Great Tinamou
A beautiful, pure whistled phrase repeated at regular intervals from the forest floor. Call is a clear 'wheeeoo-wheeeoo'. Among the most musical tinamou calls in its range.
Geographic Range & Migration
Grey-legged Tinamou
Endemic to the humid Andean slopes of western Colombia and northwestern Ecuador. Sedentary in cloud forest from 800 to 2,200 m.
Great Tinamou
Found in open habitats from Venezuela and Guianas through Bolivia to northeastern Argentina. Sedentary in dry savannas and grasslands.
Tình Trạng Bảo Tồn
Grey-legged Tinamou
Great Tinamou
How to Tell Them Apart
Grey-legged Tinamou
Dark brown upperparts with blackish barring. Diagnostic gray legs distinguish it from red-legged congeners. Throat whitish; breast rufous-brown; belly pale. Crown darker; sexes similar.
Great Tinamou
Olive-brown to grayish-brown upperparts with black vermiculations and barring. Crown darker brownish; throat whitish. Breast grayish-brown; belly pale buff. Flanks barred with dark brown.
About These Birds
Grey-legged Tinamou
A poorly known medium-sized tinamou with brown plumage and conspicuously grey legs. Restricted to the tepui region of southern Venezuela and adjacent northern Brazil. Known from very few observations. Forages terrestrially in dense undergrowth of montane forest.
Great Tinamou
The largest regularly occurring tinamou, with brownish-grey plumage, barred wings, and a pale belly. Common in lowland Neotropical rainforest from Mexico to Bolivia. Males incubate glossy teal-colored eggs. Their haunting multi-note calls resonate through the forest, making them acoustically conspicuous yet visually elusive.