Coimbra-Filho’s Titi vs Scaly-naped Parrot / Scaly-naped Amazon

Callicebus coimbrai compared with Amazona mercenaria

Key Differences

• Coimbra-Filho’s Titi is Endangered while Scaly-naped Parrot / Scaly-naped Amazon is Least Concern.

Taxonomic Classification

Rank	Coimbra-Filho’s Titi	Scaly-naped Parrot / Scaly-naped Amazon
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Mammalia (lớp Thú)	Aves (chim)
Order	Primates (bộ Linh trưởng)	Psittaciformes (Bộ Vẹt)
Family	Pitheciidae	Psittacidae (True Parrots)
Genus	Callicebus	Amazona
Species	Callicebus coimbrai	Amazona mercenaria

Evolutionary Relationship

Coimbra-Filho’s Titi and Scaly-naped Parrot / Scaly-naped Amazon share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Coimbra-Filho’s Titi

EN — Endangered

Scaly-naped Parrot / Scaly-naped Amazon

LC — Least Concern

Physical Characteristics

Attribute	Coimbra-Filho’s Titi	Scaly-naped Parrot / Scaly-naped Amazon
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Scaly-naped Parrot / Scaly-naped Amazon

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Coimbra-Filho’s Titi

The Coimbra-Filho's Titi (Callicebus coimbrai), also known as Coimbra-Filho's Titi Monkey, is a small New World monkey in the family Pitheciidae, named in honour of the Brazilian primatologist Adelmar F. Coimbra-Filho. This titi monkey is endemic to the Atlantic Forest of northeastern Brazil, with its range restricted to the states of Sergipe and southern Alagoas—one of the most critically fragmented and threatened biomes on Earth. Adults are small, with reddish-brown fur on the flanks and upperparts, pale grey on the underparts, and an orange-red forehead band. Like all titi monkeys, Callicebus coimbrai is highly social, living in monogamous family groups of 2–5 individuals that engage in elaborate dawn duets and tail-twining behaviour as expressions of pair bonding. The species inhabits Atlantic Forest fragments, including lowland and highland forest patches, riverine gallery forest, and secondary growth, where it subsists on fruits, seeds, leaves, and occasional invertebrates. The Coimbra-Filho's Titi is classified as Endangered by the IUCN due to its severely fragmented range within one of the world's most deforested biomes, with less than 12% of original Atlantic Forest remaining, ongoing habitat loss from agricultural expansion, and small, isolated population sizes highly vulnerable to stochastic extinction events.

Scaly-naped Parrot / Scaly-naped Amazon

A large, predominantly green amazon parrot with distinctive dark-scaled nape feathers and a patch of red on the wing, scaly-naped amazons inhabit humid montane forests of the northern and central Andes in Colombia, Venezuela, Ecuador, and Peru at elevations of 600–3,000 meters. Relatively little known compared to other amazons, they are found in pairs or small flocks feeding on seeds, fruit, and flowers in cloud forest. Listed as Least Concern.