Black-capped Rufous-Warbler vs Coimbra-Filho’s Titi

Bathmocercus cerviniventris compared with Callicebus coimbrai

Key Differences

• Black-capped Rufous-Warbler is Data Deficient while Coimbra-Filho’s Titi is Endangered.

Taxonomic Classification

Rank	Black-capped Rufous-Warbler	Coimbra-Filho’s Titi
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Primates (Primates)
Family	Cisticolidae	Pitheciidae
Genus	Bathmocercus	Callicebus
Species	Bathmocercus cerviniventris	Callicebus coimbrai

Evolutionary Relationship

Black-capped Rufous-Warbler and Coimbra-Filho’s Titi share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-capped Rufous-Warbler

DD — Data Deficient

Coimbra-Filho’s Titi

EN — Endangered

Physical Characteristics

Attribute	Black-capped Rufous-Warbler	Coimbra-Filho’s Titi
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-capped Rufous-Warbler

Habitat

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

Range

Found in Norway.

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Black-capped Rufous-Warbler

The Black-capped Rufous-Warbler (Bathmocercus cerviniventris) is a species in the genus Bathmocercus. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in various aerial, terrestrial, and aquatic environments.

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.