Eastern Bluebird vs Oriental Stork
Sialia sialis 比較対象 Ciconia boyciana
Side-by-Side Comparison
| 属性 | Eastern Bluebird | Oriental Stork |
|---|---|---|
| 学名 | Sialia sialis | Ciconia boyciana |
| 目 | Passeriformes | Ciconiiformes |
| 科 | Turdidae | Ciconiidae |
| 保全状況 | Least Concern | Endangered |
| 体長 | 17.5 cm (6.9 in) | 115.0 cm (45.3 in) |
| 翼開長 | 27.0 cm (10.6 in) | 220.0 cm (86.6 in) |
| 体重 | 31.0 g (1.09 oz) | 5000.0 g (176.37 oz) |
| 食性 | Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to … | Fish, frogs, snakes, large insects, and small mammals caught in shallow wetlands. Feeds by wading … |
| 一腹卵数 | 4-5 | 2-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Eastern Bluebird
Open woodland, farmland edges, orchards, and parks with scattered trees and open ground. Readily uses nest boxes.
Oriental Stork
Wetlands, flooded rice paddies, rivers, and marshes. Nests on tall trees, utility poles, and artificial platforms.
Song & Call Comparison
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.
Oriental Stork
Essentially silent like all storks; produces loud mechanical bill-clattering at the nest as a greeting display. Chicks beg with hissing and squeaking. Rarely vocalizes otherwise.
Geographic Range & Migration
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
Oriental Stork
Breeds in the Russian Far East and northeastern China. Winters in southeastern China, Japan, and Korea.
保全状況
Eastern Bluebird
Oriental Stork
How to Tell Them Apart
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
Oriental Stork
White body plumage with black flight feathers. Red bare skin around the eye and black bill distinguish it from the white stork. Pinkish-red legs.
Long, thick, straight, black bill
About These Birds
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。
Oriental Stork
The oriental stork is one of the most endangered stork species, with fewer than 3,000 individuals remaining in the wild. It was once widespread across East Asia but declined dramatically due to wetland drainage and pesticide use. Reintroduction programs in Japan and Korea have achieved notable success.