Bistort Silver Rust vs Scarlet Macaw

Microbotryum marginale compared with Ara macao

Key Differences

Bistort Silver Rust is Not Evaluated while Scarlet Macaw is Least Concern.

Taxonomic Classification

Rank	Bistort Silver Rust	Scarlet Macaw
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Microbotryomycetes (Microbotryomycetes)	Aves (Birds)
Order	Microbotryales (Microbotryales)	Psittaciformes (Parrots)
Family	Microbotryaceae	Psittacidae (True Parrots)
Genus	Microbotryum	Ara (Macaws)
Species	Microbotryum marginale	Ara macao

Conservation Status

Bistort Silver Rust

NE — Not Evaluated

Scarlet Macaw

LC — Least Concern

Population: ~50.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bistort Silver Rust	Scarlet Macaw
Diet	—	Herbivore
Average Lifespan	—	50 years
Average Length	—	85 cm
Average Weight	—	1.0 kg

Habitat & Geographic Range

Bistort Silver Rust

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium and Sweden.

Scarlet Macaw

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found across Europe (5 countries) and South America (Colombia, Ecuador, Venezuela). Population trends indicate a declining trajectory in parts of its range.

Bistort Silver Rust

The Bistort Silver Rust (Microbotryum marginale) is a species in the genus Microbotryum. Native to Europe, inhabiting ecosystems characteristic of the region.

One of the most brilliantly colored birds in the Americas, scarlet macaws display vivid red, yellow, and blue plumage with wingspans reaching 1 meter. Found in humid lowland forests from Mexico to Bolivia, they are highly intelligent, long-lived — up to 75 years — and form lifelong pair bonds. They travel long distances to clay licks where they consume mineral-rich soil to detoxify seeds. Listed as Least Concern but locally threatened by habitat loss and the pet trade.