Bartlett's Tinamou vs Undulated Tinamou
Crypturellus bartletti compared with Crypturellus undulatus
Side-by-Side Comparison
| Attribute | Bartlett's Tinamou | Undulated Tinamou |
|---|---|---|
| Scientific Name | Crypturellus bartletti | Crypturellus undulatus |
| Order | Tinamiformes | Tinamiformes |
| Family | Tinamidae | Tinamidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 27.1 cm (10.7 in) | 34.5 cm (13.6 in) |
| Weight | 241.0 g (8.50 oz) | 550.6666666666666 g (19.42 oz) |
| Diet | Grazes aquatic vegetation, grasses, and sedges in South American marshes; wades in shallow water; diet … | -- |
| Clutch Size | -- | 4-5 |
| Population Trend | — | — |
Habitat Comparison
Bartlett's Tinamou
Lowland humid forest in the western Amazon basin of Peru, Ecuador, and adjacent Colombia and Brazil. Prefers undisturbed terra firme and seasonally flooded forest interior below 400 m.
Undulated Tinamou
Humid forests, forest edges, cerrado woodland, and gallery forest in the Amazon basin and adjacent cerrado from Venezuela and Colombia to Argentina. Tolerates seasonally flooded forest and disturbed secondary habitats.
Song & Call Comparison
Bartlett's Tinamou
A soft, repeated whistle from Amazonian lowland forest. Less well known than other Crypturellus; its call is a simple 2-note descending whistle given from dense cover.
Undulated Tinamou
A loud, repeated undulating whistle that rises and falls — matching its name 'undulated'. Carries well through várzea forest and wetland edges across its broad range.
Geographic Range & Migration
Bartlett's Tinamou
Ranges from southern Mexico through Central America to northern South America. Sedentary in humid lowland forest understory.
Undulated Tinamou
Conservation Status
Bartlett's Tinamou
Undulated Tinamou
How to Tell Them Apart
Bartlett's Tinamou
Brown upperparts with fine blackish barring; crown dark. Throat whitish to pale buff; breast rufous-brown. Belly buff-white. Reddish legs. Small tinamou of Amazonian lowland forests; sexes similar.
Undulated Tinamou
Brown upperparts with pronounced wavy blackish barring and undulations. Pale buff-white throat; breast rufous-brown. Belly whitish with barred flanks. Reddish-orange legs diagnostic. Sexes similar.
About These Birds
Bartlett's Tinamou
A small brown tinamou with obscure barring and a grey throat, named after naturalist Edward Bartlett. Found in the western Amazon basin in Peru, Ecuador, and adjacent Brazil. Terrestrial and cryptic; detected mainly by its soft clear whistle in humid forest.
Undulated Tinamou
A medium-sized tinamou with fine undulating barring throughout its brown plumage, giving it a scalloped look. Widespread in Amazonian and Cerrado habitats. Produces a distinctive three- or four-note fluted call. Feeds on fallen fruits, arthropods, and seeds, often near gallery forests and water.