grey mouse-ear vs Red-billed Duck

Cerastium brachypetalum compared with Anas erythrorhyncha

Key Differences

• grey mouse-ear is Critically Endangered while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	grey mouse-ear	Red-billed Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Aves (Birds)
Order	Caryophyllales (Caryophyllales)	Anseriformes (Anseriformes)
Family	Caryophyllaceae	Anatidae
Genus	Cerastium	Anas
Species	Cerastium brachypetalum	Anas erythrorhyncha

Conservation Status

grey mouse-ear

CR — Critically Endangered

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	grey mouse-ear	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

grey mouse-ear

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (8 countries) and North America (United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) 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 5 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇬🇧 United Kingdom