Chestnut-fronted Macaw vs coastal arrow worm

Ara severus compared with Parasagitta setosa

Key Differences

• Chestnut-fronted Macaw is Least Concern while coastal arrow worm is Not Evaluated.

Taxonomic Classification

Rank	Chestnut-fronted Macaw	coastal arrow worm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Chaetognatha (arrow worms)
Class	Aves (Birds)	Sagittoidea (Sagittoidea)
Order	Psittaciformes (Parrots)	Aphragmophora (Aphragmophora)
Family	Psittacidae (True Parrots)	Sagittidae
Genus	Ara (Macaws)	Parasagitta
Species	Ara severus	Parasagitta setosa

Evolutionary Relationship

Chestnut-fronted Macaw and coastal arrow worm share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Chestnut-fronted Macaw

LC — Least Concern

coastal arrow worm

NE — Not Evaluated

Physical Characteristics

Attribute	Chestnut-fronted Macaw	coastal arrow worm
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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).

coastal arrow worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Russia.

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.

coastal arrow worm

Parasagitta setosa, the coastal arrow worm, is a chaetognath in the family Sagittidae inhabiting the coastal and neritic waters of the northeastern Atlantic Ocean and adjacent North Sea and Baltic Sea, with confirmed records from Denmark, Norway, and Russia. Arrow worms are small, transparent, torpedo-shaped marine invertebrates typically 1–5 centimeters long, and despite their common name, are neither worms nor closely related to any familiar animal group; they form their own phylum, Chaetognatha, comprising around 120 species. Parasagitta setosa is a predatory planktonic species, using stiff bristle-like grasping spines flanking its mouth to seize copepods, small fish larvae, and other zooplankton that form the bulk of its diet. It occupies neritic plankton communities, often occurring in brackish coastal waters and estuaries where many arrow worm species cannot tolerate reduced salinity. The species serves as an important prey item for fish including herring and sprat and functions as a significant link in coastal marine food webs. Arrow worm phylogenetic position has been debated extensively; molecular evidence places them near the base of protostome animals. The species is Not Evaluated by the IUCN, as marine zooplankton populations are rarely assessed due to monitoring challenges.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway