Demoiselle Crane vs Eastern Bluebird
Anthropoides virgo 比較対象 Sialia sialis
Side-by-Side Comparison
| 属性 | Demoiselle Crane | Eastern Bluebird |
|---|---|---|
| 学名 | Anthropoides virgo | Sialia sialis |
| 目 | Gruiformes | Passeriformes |
| 科 | Gruidae | Turdidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 90.0 cm (35.4 in) | 17.5 cm (6.9 in) |
| 翼開長 | 175.0 cm (68.9 in) | 27.0 cm (10.6 in) |
| 体重 | 2500.0 g (88.18 oz) | 31.0 g (1.09 oz) |
| 食性 | Seeds, grasses, insects, snails, worms, and small vertebrates. Forages in grasslands and agricultural fields. | Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to … |
| 一腹卵数 | 2 | 4-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Demoiselle Crane
Dry grasslands, savannas, and semi-desert. Nests on the ground in open country, often near water. Winters in agricultural fields.
Eastern Bluebird
Open woodland, farmland edges, orchards, and parks with scattered trees and open ground. Readily uses nest boxes.
Song & Call Comparison
Demoiselle Crane
A high-pitched, bugling 'karr-r-r' in flight. Also gives softer clucking and purring contact calls. Migrating flocks produce a continuous musical babbling audible from great distance.
Eastern Bluebird
A rich, melodious warbled 'chur-wi, tur-a-lee' song. Both sexes sing. Call is a soft, musical 'turee'. Song is gentle and flute-like, suggesting a small thrush. Given from exposed perch.
Geographic Range & Migration
Demoiselle Crane
Central Eurasia from the Black Sea to Mongolia and northeastern China. Winters in India and sub-Saharan Africa.
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
保全状況
Demoiselle Crane
Eastern Bluebird
How to Tell Them Apart
Demoiselle Crane
Pale blue-grey body with a black head, neck, and breast plumes. White ear tufts extend behind the red eyes. Long black tertials drape over the tail.
Short, yellowish-olive bill, shorter than other cranes
Eastern Bluebird
Males are vivid royal blue above with a rusty-red breast and white belly. Females are grey-blue with a paler rust breast.
Short, thin, dark bill
About These Birds
Demoiselle Crane
The demoiselle crane is the smallest crane species but undertakes one of the most grueling migrations, crossing the Himalayas at altitudes over 8,000 meters to reach wintering grounds in India. Named for its elegant appearance by Marie Antoinette, it is the second most abundant crane species in the world.
Eastern Bluebird
北米に生息するヒタキで、青い上面とオレンジ色の胸を持つ。巣箱の設置プログラムにより個体数が回復した。