Common Tarcrust vs Yellow-crowned Parrot / Yellow-crowned Amazon

Diatrype stigma compared with Amazona ochrocephala

Key Differences

Common Tarcrust is Not Evaluated while Yellow-crowned Parrot / Yellow-crowned Amazon is Least Concern.

Taxonomic Classification

Rank	Common Tarcrust	Yellow-crowned Parrot / Yellow-crowned Amazon
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Sordariomycetes (Sordariomycetes)	Aves (Birds)
Order	Xylariales (Xylariales)	Psittaciformes (Parrots)
Family	Diatrypaceae	Psittacidae (True Parrots)
Genus	Diatrype	Amazona
Species	Diatrype stigma	Amazona ochrocephala

Conservation Status

Common Tarcrust

NE — Not Evaluated

Yellow-crowned Parrot / Yellow-crowned Amazon

LC — Least Concern

Physical Characteristics

Attribute	Common Tarcrust	Yellow-crowned Parrot / Yellow-crowned Amazon
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Tarcrust

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden.

Yellow-crowned Parrot / Yellow-crowned Amazon

Habitat

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

Range

Widely distributed across Europe (7 countries), North America (Barbados, United States), and South America (Colombia, Ecuador, Venezuela).

Common Tarcrust

<em>Diatrype stigma</em>, the common tarcrust, is a saprotrophic fungus in the family Diatrypaceae, found across Belgium, Denmark, Norway, Portugal, and Sweden, as well as more broadly in Europe and temperate regions globally. It grows as a crust-like, charcoal-black stromata on the dead bark and branches of deciduous hardwoods, particularly hazel, beech, and alder. The fruiting bodies are typically flat to slightly raised, dark gray to black patches that contain numerous embedded perithecia in which ascospores are produced. This fungus plays an important ecological role as a decomposer, breaking down dead woody material and recycling nutrients in forest ecosystems. It is Not Evaluated on the IUCN Red List; given its broad distribution on common substrates, it is generally considered widespread. The species reproduces via wind-dispersed ascospores released from the perithecia. Diet, as a saprotrophic organism, consists of dead organic woody matter. Biological traits such as colony growth rates, spore output, and longevity remain poorly documented in standardized quantitative assessments.

Yellow-crowned Parrot / Yellow-crowned Amazon

A large, robust amazon parrot found across a broad range from Mexico and Panama through the Amazon basin to Bolivia and Paraguay, yellow-crowned amazons are predominantly green with a variable yellow crown. They inhabit forest, woodland, and savanna and are adaptable enough to thrive in agricultural areas. Multiple subspecies are recognized with differing degrees of yellow on the head. Highly regarded as pet and aviary birds for their speech ability and social temperament.