ボルチモアムクドリモドキ vs Common Least Skipper

Icterus galbula compared with Ancyloxypha numitor

Taxonomic Classification

Rank	ボルチモアムクドリモドキ	Common Least Skipper
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Arthropoda (節足動物)
Class	Aves (鳥類)	Insecta (昆虫)
Order	Passeriformes (スズメ目)	Lepidoptera (チョウ目)
Family	Icteridae	Hesperiidae
Genus	Icterus	Ancyloxypha
Species	Icterus galbula	Ancyloxypha numitor

Evolutionary Relationship

ボルチモアムクドリモドキ and Common Least Skipper share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

ボルチモアムクドリモドキ

LC — Least Concern

Common Least Skipper

LC — Least Concern

Physical Characteristics

Attribute	ボルチモアムクドリモドキ	Common Least Skipper
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ボルチモアムクドリモドキ

Habitat

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

Range

Widely distributed across Europe (6 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Common Least Skipper

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada and United States.

ボルチモアムクドリモドキ

ボルティモアムクドリモドキ（Icterus galbula）は北米東部〜中米で繁殖し、冬季は中南米へ渡る渡り鳥で、雄の鮮やかな橙と黒の体色が美しい。IUCNレッドリストでは軽度懸念（LC）に分類されており、メリーランド州の州鳥・ボルティモア・オリオールズのチーム名の由来でもある。メキシコ湾を一気に渡る長距離渡りを行い、針状の先が精巧に編み込まれた深い袋状の巣を木の枝先に吊り下げて営巣する。

Common Least Skipper

The Common Least Skipper (<em>Ancyloxypha numitor</em>) is a small butterfly in the family Hesperiidae, classified as Least Concern on the IUCN Red List. It is native to Canada and the United States, where it typically inhabits virtually all terrestrial and freshwater habitats within its range, showing a particular affinity for moist, grassy areas near water. The species is among the smallest skippers in North America, characterized by orange and brown wing coloration and a rapid, low-flying flight pattern close to vegetation. Adults typically nectar on small flowers while larvae feed on grasses, particularly those in wet meadows, marshes, stream margins, and disturbed grassy areas. The Common Least Skipper is frequently observed in wetland margins, wet prairies, and roadsides with rank grass growth. Its wide distribution across North America and habitat generalism across moist grassland and wetland types support its stable population and Least Concern conservation status. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States