Long-tailed Sylph vs Nelson s Antelope Squirrel

Aglaiocercus kingii compared with Ammospermophilus nelsoni

Key Differences

• Long-tailed Sylph is Least Concern while Nelson s Antelope Squirrel is Endangered.

Taxonomic Classification

Rank	Long-tailed Sylph	Nelson s Antelope Squirrel
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Aves (นก)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Apodiformes (Apodiformes)	Rodentia (อันดับสัตว์ฟันแทะ)
Family	Trochilidae	Sciuridae (Squirrels)
Genus	Aglaiocercus	Ammospermophilus
Species	Aglaiocercus kingii	Ammospermophilus nelsoni

Evolutionary Relationship

Long-tailed Sylph and Nelson s Antelope Squirrel share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Nelson s Antelope Squirrel

EN — Endangered

Physical Characteristics

Attribute	Long-tailed Sylph	Nelson s Antelope Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Nelson s Antelope Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Long-tailed Sylph

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.