Pear-tree Pigmy vs Red-billed Duck

Stigmella pyri compared with Anas erythrorhyncha

Key Differences

• Pear-tree Pigmy is Endangered while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Pear-tree Pigmy	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Anseriformes (Anseriformes)
Family	Nepticulidae	Anatidae
Genus	Stigmella	Anas
Species	Stigmella pyri	Anas erythrorhyncha

Evolutionary Relationship

Pear-tree Pigmy and Red-billed Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Pear-tree Pigmy

EN — Endangered

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Pear-tree Pigmy	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pear-tree Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (6 countries). Currently classified as 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 4 countries:

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