Coimbra-Filho’s Titi vs 爪哇禾雀

Callicebus coimbrai compared with Lonchura oryzivora

Key Differences

• Coimbra-Filho’s Titi is Endangered while 爪哇禾雀 is Vulnerable.

Taxonomic Classification

Rank	Coimbra-Filho’s Titi	爪哇禾雀
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	Mammalia (哺乳動物)	Aves (鳥綱)
Order	Primates (灵长目)	Passeriformes (雀形目)
Family	Pitheciidae	Estrildidae
Genus	Callicebus	Lonchura
Species	Callicebus coimbrai	Lonchura oryzivora

Evolutionary Relationship

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

Conservation Status

Coimbra-Filho’s Titi

EN — Endangered

爪哇禾雀

VU — Vulnerable

Physical Characteristics

Attribute	Coimbra-Filho’s Titi	爪哇禾雀
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

爪哇禾雀

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 6 distinct biome types spanning the Afrotropic and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Tanzania), Asia (Taiwan, Thailand, Vietnam), Europe (5 countries), North America (United States), Oceania and the Pacific (Australia), and South America (Colombia, Venezuela). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

爪哇禾雀

爪哇禾雀是东亚最受欢迎的笼鸟之一，外形优美，具有灰色羽毛、醒目的黑色头部、白色颊斑和鲜红色喙。原产于印度尼西亚的爪哇岛和巴厘岛，已被引入亚洲、非洲和美洲的许多地区。栖息于开阔草地、水稻田和农耕地，有时会危害水稻作物。由于笼鸟贸易的严重捕捉压力，在原产地被列为易危物种。