Rock Foam vs Yellow-billed Cacique

Stereocaulon saxatile compared with Amblycercus holosericeus

Key Differences

• Rock Foam is Near Threatened while Yellow-billed Cacique is Least Concern.

Taxonomic Classification

Rank	Rock Foam	Yellow-billed Cacique
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Aves (Birds)
Order	Lecanorales (Lecanorales)	Passeriformes (Songbirds)
Family	Stereocaulaceae	Icteridae
Genus	Stereocaulon	Amblycercus
Species	Stereocaulon saxatile	Amblycercus holosericeus

Conservation Status

Rock Foam

NT — Near Threatened

Yellow-billed Cacique

LC — Least Concern

Physical Characteristics

Attribute	Rock Foam	Yellow-billed Cacique
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Rock Foam

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Yellow-billed Cacique

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Yellow-billed Cacique

Yellow-billed Cacique (Amblycercus holosericeus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway