雙眉葦鶯 vs Coimbra-Filho’s Titi

Acrocephalus bistrigiceps compared with Callicebus coimbrai

Key Differences

• 雙眉葦鶯 is Least Concern while Coimbra-Filho’s Titi is Endangered.

Taxonomic Classification

Rank	雙眉葦鶯	Coimbra-Filho’s Titi
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Passeriformes (雀形目)	Primates (灵长目)
Family	Acrocephalidae	Pitheciidae
Genus	Acrocephalus	Callicebus
Species	Acrocephalus bistrigiceps	Callicebus coimbrai

Evolutionary Relationship

雙眉葦鶯 and Coimbra-Filho’s Titi share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

雙眉葦鶯

LC — Least Concern

Coimbra-Filho’s Titi

EN — Endangered

Physical Characteristics

Attribute	雙眉葦鶯	Coimbra-Filho’s Titi
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

雙眉葦鶯

Habitat

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

Range

Distributed across Norway and Taiwan.

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

雙眉葦鶯

The Black-browed Reed Warbler (Acrocephalus bistrigiceps) is a species in the genus Acrocephalus. It is currently classified as Least Concern on the IUCN Red List. 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.