Least Bittern vs small tortoiseshell

Ixobrychus exilis compared with Aglais urticae

Key Differences

• Least Bittern is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Least Bittern	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Insecta (Insects)
Order	Pelecaniformes (Pelecaniformes)	Lepidoptera (Butterflies & Moths)
Family	Ardeidae	Nymphalidae (Brush-footed Butterflies)
Genus	Ixobrychus	Aglais
Species	Ixobrychus exilis	Aglais urticae

Evolutionary Relationship

Least Bittern and small tortoiseshell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Least Bittern

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Least Bittern	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Least Bittern

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, United States, and Venezuela.

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Least Bittern

Least Bittern (Ixobrychus exilis) 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.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway