黑嘴山巨嘴鸟 vs Coimbra-Filho’s Titi

Andigena nigrirostris compared with Callicebus coimbrai

Key Differences

• 黑嘴山巨嘴鸟 is Least Concern while Coimbra-Filho’s Titi is Endangered.

Taxonomic Classification

Rank	黑嘴山巨嘴鸟	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	Piciformes (鴷形目)	Primates (灵长目)
Family	Ramphastidae	Pitheciidae
Genus	Andigena	Callicebus
Species	Andigena nigrirostris	Callicebus coimbrai

Evolutionary Relationship

黑嘴山巨嘴鸟 and Coimbra-Filho’s Titi share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

黑嘴山巨嘴鸟

LC — Least Concern

Coimbra-Filho’s Titi

EN — Endangered

Physical Characteristics

Attribute	黑嘴山巨嘴鸟	Coimbra-Filho’s Titi
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

黑嘴山巨嘴鸟

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

黑嘴山巨嘴鸟

黑嘴山巨嘴鸟（Andigena nigrirostris）在IUCN红色名录中被列为无危（LC）。该物种在其分布范围内广泛分布、数量丰富，种群稳定，目前没有直接的保育关注。

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.