Bellenden Ker Scaly Snail vs Hahnenschwanztyrann

Aetholitis gerdesae compared with Alectrurus tricolor

Key Differences

• Bellenden Ker Scaly Snail is Least Concern while Hahnenschwanztyrann is Vulnerable.

Taxonomic Classification

Rank	Bellenden Ker Scaly Snail	Hahnenschwanztyrann
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Mollusca (Weichtiere)	Chordata (Chordatiere)
Class	Gastropoda (Schnecken)	Aves (Vögel)
Order	Stylommatophora (Landlungenschnecken)	Passeriformes (Sperlingsvögel)
Family	Camaenidae	Tyrannidae
Genus	Aetholitis	Alectrurus
Species	Aetholitis gerdesae	Alectrurus tricolor

Evolutionary Relationship

Bellenden Ker Scaly Snail and Hahnenschwanztyrann share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Bellenden Ker Scaly Snail

LC — Least Concern

Hahnenschwanztyrann

VU — Vulnerable

Physical Characteristics

Attribute	Bellenden Ker Scaly Snail	Hahnenschwanztyrann
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bellenden Ker Scaly Snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found in Australia.

Hahnenschwanztyrann

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Bellenden Ker Scaly Snail

The Bellenden Ker Scaly Snail (Aetholitis gerdesae) is a species in the genus Aetholitis. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Hahnenschwanztyrann

The cock-tailed tyrant (Alectrurus tricolor) is a striking and unusual flycatcher in the family Tyrannidae, named for the remarkable elongated, spatula-shaped outer tail feathers of the male, which can exceed the body length and are displayed during aerial courtship flights over open grasslands. The species inhabits wet and seasonally flooded grasslands, cerrado savanna, and campos in the interior of South America, including central Brazil, eastern Bolivia, Paraguay, and northeastern Argentina — not Norway, as erroneous database entries suggest. Males combine conspicuous black, white, and rufous plumage with their extraordinary tail streamers in an elaborate display to attract females on leks; females are cryptically streaked brown. The cock-tailed tyrant is a ground- and low-vegetation forager, preying on insects and other small invertebrates gleaned from grass stems and caught in aerial sallies. The species is classified as Vulnerable by the IUCN due to extensive and continuing conversion and degradation of its native Neotropical grassland habitat through intensive soy and sugarcane agriculture, cattle ranching, fire management changes, and drainage of seasonally flooded grasslands. Populations have declined significantly across much of its range, particularly in Brazil and Paraguay. The species is a flagship for threatened grassland conservation in South America, where relatively little protection has historically been directed at open-country habitats compared to forest ecosystems.