ボルチモアムクドリモドキ vs Complex-toothed Flying Squirrel

Icterus galbula compared with Trogopterus xanthipes

Key Differences

• ボルチモアムクドリモドキ is Least Concern while Complex-toothed Flying Squirrel is Near Threatened.

Taxonomic Classification

Rank	ボルチモアムクドリモドキ	Complex-toothed Flying Squirrel
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Mammalia (哺乳類)
Order	Passeriformes (スズメ目)	Rodentia (ネズミ目)
Family	Icteridae	Sciuridae (Squirrels)
Genus	Icterus	Trogopterus
Species	Icterus galbula	Trogopterus xanthipes

Evolutionary Relationship

ボルチモアムクドリモドキ and Complex-toothed Flying Squirrel share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

ボルチモアムクドリモドキ

LC — Least Concern

Complex-toothed Flying Squirrel

NT — Near Threatened

Physical Characteristics

Attribute	ボルチモアムクドリモドキ	Complex-toothed Flying Squirrel
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).

Complex-toothed Flying Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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。

Complex-toothed Flying Squirrel

<em>Trogopterus xanthipes</em>, the complex-toothed flying squirrel, is a medium-sized gliding rodent in the family Pteromyidae endemic to China, where it inhabits montane broadleaf and mixed forests at elevations typically between 1,000 and 2,700 metres in provinces including Sichuan, Yunnan, Guizhou, Hubei, and neighbouring regions. This species is the sole member of the genus Trogopterus and is distinguished by complex tooth morphology compared to other flying squirrels. Like all flying squirrels, it possesses a patagium — a gliding membrane stretching between fore and hind limbs — that enables it to glide between trees rather than undertake powered flight. The complex-toothed flying squirrel is nocturnal and arboreal, spending its days sheltering in tree hollows and foraging at night for leaves, bark, seeds, and fungi. Its faeces, known as Wuflingzhi, have been used in traditional Chinese medicine for centuries, leading to trapping pressure in parts of its range. The IUCN classifies this species as Near Threatened, reflecting population decline driven by overhunting for medicinal use and ongoing habitat loss from logging and agricultural encroachment in montane forests. Biological traits including average body mass, lifespan, litter size, and home range are partially documented but detailed population estimates are limited. Conservation measures include legal protections under Chinese wildlife law.