Adder'S Fern vs Collared Myna

Polypodium vulgare compared with Acridotheres albocinctus

Taxonomic Classification

Rank	Adder'S Fern	Collared Myna
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Aves (Birds)
Order	Polypodiales (Polypodiales)	Passeriformes (Songbirds)
Family	Polypodiaceae	Sturnidae
Genus	Polypodium	Acridotheres
Species	Polypodium vulgare	Acridotheres albocinctus

Conservation Status

Adder'S Fern

LC — Least Concern

Collared Myna

LC — Least Concern

Physical Characteristics

Attribute	Adder'S Fern	Collared Myna
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Adder'S Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Found across Europe (7 countries) and North America (United States).

Collared Myna

Habitat

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

Range

Found in Norway.

Adder'S Fern

The Adder'S Fern (Polypodium vulgare) is a species in the genus Polypodium. It is currently classified as Least Concern on the IUCN Red List. This species inhabits Typically found in moist, shaded forest floors and tropical canopies, found across Belgium, Denmark, Finland, Iceland, and Norway.

Collared Myna

The Collared Myna, known scientifically as <em>Acridotheres albocinctus</em>, is a passerine bird belonging to the starling family Sturnidae. <em>Acridotheres albocinctus</em> is recognised by its contrasting plumage, which typically features a dark body with a distinct white collar or band — a feature reflected in both its common and scientific names. As a member of the myna genus Acridotheres, this species generally inhabits open woodland, grassland edges, and areas associated with human settlement, where it forages on the ground for invertebrates, fruits, and seeds. It is reported to occur in Norway according to available range data. Detailed biological traits including typical lifespan, body length, and weight are poorly documented for this species in available literature. The Collared Myna is currently assessed as Least Concern on the IUCN Red List, indicating that the global population is considered stable without significant conservation concerns at this time.