Gray-shanked Douc Langur vs Long-tailed Sylph

Pygathrix cinerea compared with Aglaiocercus kingii

Key Differences

• Gray-shanked Douc Langur is Critically Endangered while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Gray-shanked Douc Langur	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Aves (ave)
Order	Primates (primatas)	Apodiformes (Apodiformes)
Family	Cercopithecidae (Old World Monkeys)	Trochilidae
Genus	Pygathrix	Aglaiocercus
Species	Pygathrix cinerea	Aglaiocercus kingii

Evolutionary Relationship

Gray-shanked Douc Langur and Long-tailed Sylph share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Gray-shanked Douc Langur

CR — Critically Endangered

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Gray-shanked Douc Langur	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-shanked Douc Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Long-tailed Sylph

Um dos beija-flores mais vistosamente ornamentados, os machos do beija-flor-de-cauda-longa (Aglaiocercus kingii) possuem plumagem verde-iridescente e retrizes externas dramaticamente alongadas em forma de fita, atingindo até 22 cm — mais de três vezes o comprimento do corpo. Encontrado nas florestas nubladas andinas da Colômbia e Venezuela, habita florestas montanas úmidas entre 1.400 e 2.800 metros de altitude. Os machos realizam voos elaborados para atrair as fêmeas. Suas caudas extravagantes são um exemplo clássico de seleção sexual por preferência feminina.