Collared Worm Salamander vs Rufous-tailed Hummingbird

Oedipina collaris compared with Amazilia tzacatl

Key Differences

• Collared Worm Salamander is Data Deficient while Rufous-tailed Hummingbird is Least Concern.

Taxonomic Classification

Rank	Collared Worm Salamander	Rufous-tailed Hummingbird
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Aves (Birds)
Order	Caudata (Caudata)	Apodiformes (Apodiformes)
Family	Plethodontidae	Trochilidae
Genus	Oedipina	Amazilia
Species	Oedipina collaris	Amazilia tzacatl

Evolutionary Relationship

Collared Worm Salamander and Rufous-tailed Hummingbird share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Collared Worm Salamander

DD — Data Deficient

Rufous-tailed Hummingbird

LC — Least Concern

Physical Characteristics

Attribute	Collared Worm Salamander	Rufous-tailed Hummingbird
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Collared Worm Salamander

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Rufous-tailed Hummingbird

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Collared Worm Salamander

The Collared Worm Salamander, known scientifically as <em>Oedipina collaris</em>, is a slender, elongated salamander belonging to the family Plethodontidae, the lungless salamanders. <em>Oedipina collaris</em> is characterised by its worm-like body form, extremely elongated trunk with many vertebrae, short limbs, and a long tail — morphological features that adapt the species for a burrowing or semi-fossorial lifestyle. As a plethodontid salamander, <em>Oedipina collaris</em> lacks lungs and respires entirely through its moist skin, making it highly dependent on humid environments. The species inhabits freshwater habitats, moist forests, and wetlands. Detailed biological traits including typical lifespan, body length, and weight are poorly documented for this species in available literature. The Collared Worm Salamander is currently assessed as Data Deficient on the IUCN Red List, indicating that insufficient information is available to determine its conservation status accurately, and further research on the species' distribution and population trends is required.

Rufous-tailed Hummingbird

One of the most common hummingbirds in Central America and northwestern South America, rufous-tailed hummingbirds are medium-sized with green upper parts and a diagnostic bright rufous-orange tail. Found from Mexico to Ecuador and Trinidad in a wide range of habitats including forest edges, gardens, plantations, and secondary growth from sea level to 2,100 meters. Aggressive territory defenders at feeders and flowering plants, they are frequently seen in gardens across their range. Listed as Least Concern.