Cinereous Tinamou vs Gray-legged Tinamou

Crypturellus cinereus compared with Crypturellus duidae

Key Differences

• Cinereous Tinamou is Least Concern while Gray-legged Tinamou is Near Threatened.

Taxonomic Classification

Rank	Cinereous Tinamou	Gray-legged Tinamou
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class same	Aves (طيور)	Aves (طيور)
Order same	Tinamiformes (تناميات)	Tinamiformes (تناميات)
Family same	Tinamidae	Tinamidae
Genus same	Crypturellus	Crypturellus
Species	Crypturellus cinereus	Crypturellus duidae

Evolutionary Relationship

Cinereous Tinamou and Gray-legged Tinamou share a common ancestor at the Genus level: Crypturellus.

Conservation Status

Cinereous Tinamou

LC — Least Concern

Gray-legged Tinamou

NT — Near Threatened

Physical Characteristics

Attribute	Cinereous Tinamou	Gray-legged Tinamou
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cinereous Tinamou

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Gray-legged Tinamou

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Norway, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Cinereous Tinamou

The cinereous tinamou (Crypturellus cinereus) is a ground-dwelling bird in the family Tinamidae, found across lowland Amazonia in South America, including Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, and the Guianas. It inhabits humid tropical forest interior, particularly terra firme and occasionally várzea, where it walks through the undergrowth foraging for fallen fruits, seeds, and invertebrates. Like all tinamous, it has a round body, reduced wings, and strong legs adapted for a largely terrestrial lifestyle, and it produces a distinctive haunting whistle heard throughout Amazonian forest. The cinereous tinamou is classified as Least Concern by the IUCN, with a wide Amazonian distribution and populations that, while sensitive to hunting pressure, remain abundant in intact forest. Tinamous are among the most ancient lineages of birds, more closely related to rheas and ostriches than to most modern birds. This species is hunted for food by forest communities across its range. Its distribution is entirely within Amazonian South America, and it has no presence in Europe; any Norwegian database record is a data entry error. Conservation of Amazonian forest is the primary need for this species, as it is vulnerable to hunting pressure and habitat loss from deforestation. Males incubate the eggs and raise the chicks, a pattern unusual among birds.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇳🇴 Norway 🇻🇪 Venezuela