Chalk Screw-moss vs Chestnut-fronted Macaw

Tortula vahliana compared with Ara severus

Key Differences

Chalk Screw-moss is Vulnerable while Chestnut-fronted Macaw is Least Concern.

Taxonomic Classification

Rank	Chalk Screw-moss	Chestnut-fronted Macaw
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Bryophyta	Chordata (Chordates)
Class	Bryopsida (Bryopsida)	Aves (Birds)
Order	Pottiales (Pottiales)	Psittaciformes (Parrots)
Family	Pottiaceae	Psittacidae (True Parrots)
Genus	Tortula	Ara (Macaws)
Species	Tortula vahliana	Ara severus

Conservation Status

Chalk Screw-moss

VU — Vulnerable

Chestnut-fronted Macaw

LC — Least Concern

Physical Characteristics

Attribute	Chalk Screw-moss	Chestnut-fronted Macaw
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chalk Screw-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Norway, and Portugal. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Chestnut-fronted Macaw

Habitat

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

Range

Widely distributed across Europe (Belgium, Norway), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Chalk Screw-moss

The Chalk Screw-moss (Tortula vahliana) is a species in the genus Tortula. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Chestnut-fronted Macaw

A medium-sized macaw of Central and South American tropical forests from southern Mexico to Bolivia and Brazil, chestnut-fronted macaws have predominantly green plumage with a chestnut forehead, red shoulder patches, and blue flight feathers. The smallest of the true macaws, they inhabit forest edges, savannas, and secondary woodland and often raid crops, making them locally unpopular with farmers. They are popular aviary birds, but wild populations face pressure from trapping and deforestation.