雞尾霸鶲 vs Eurasian pygmy shrew
Alectrurus tricolor compared with Sorex minutus
Taxonomic Classification
| Rank | 雞尾霸鶲 | Eurasian pygmy shrew |
|---|---|---|
| Kingdom same | Animalia (动物界) | Animalia (动物界) |
| Phylum same | Chordata (脊索动物门) | Chordata (脊索动物门) |
| Class | Aves (鳥綱) | Mammalia (哺乳動物) |
| Order | Passeriformes (雀形目) | Soricomorpha (鼩形目) |
| Family | Tyrannidae | Soricidae |
| Genus | Alectrurus | Sorex |
| Species | Alectrurus tricolor | Sorex minutus |
Evolutionary Relationship
雞尾霸鶲 and Eurasian pygmy shrew share a common ancestor at the Phylum level: Chordata. (脊索动物门)
Conservation Status
雞尾霸鶲
VU — VulnerableEurasian pygmy shrew
VU — VulnerablePhysical Characteristics
| Attribute | 雞尾霸鶲 | Eurasian pygmy shrew |
|---|---|---|
| Diet | — | — |
| Average Lifespan | — | — |
| Average Length | — | — |
| Average Weight | — | — |
Habitat & Geographic Range
雞尾霸鶲
Typically found in various aerial, terrestrial, and aquatic environments.
Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.
Eurasian pygmy shrew
Typically found in diverse terrestrial and aquatic ecosystems.
Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.
雞尾霸鶲
The cock-tailed tyrant (Alectrurus tricolor) is a striking and unusual flycatcher in the family Tyrannidae, named for the remarkable elongated, spatula-shaped outer tail feathers of the male, which can exceed the body length and are displayed during aerial courtship flights over open grasslands. The species inhabits wet and seasonally flooded grasslands, cerrado savanna, and campos in the interior of South America, including central Brazil, eastern Bolivia, Paraguay, and northeastern Argentina — not Norway, as erroneous database entries suggest. Males combine conspicuous black, white, and rufous plumage with their extraordinary tail streamers in an elaborate display to attract females on leks; females are cryptically streaked brown. The cock-tailed tyrant is a ground- and low-vegetation forager, preying on insects and other small invertebrates gleaned from grass stems and caught in aerial sallies. The species is classified as Vulnerable by the IUCN due to extensive and continuing conversion and degradation of its native Neotropical grassland habitat through intensive soy and sugarcane agriculture, cattle ranching, fire management changes, and drainage of seasonally flooded grasslands. Populations have declined significantly across much of its range, particularly in Brazil and Paraguay. The species is a flagship for threatened grassland conservation in South America, where relatively little protection has historically been directed at open-country habitats compared to forest ecosystems.
Eurasian pygmy shrew
小鼩鼱(Sorex minutus)在IUCN红色名录中被列为易危(VU)物种。在野外面临高度危险风险,种群数量下降,栖息地压力不断增加。
Related Comparisons
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