Red Knot vs American Woodcock
Calidris canutus 比較対象 Scolopax minor
Side-by-Side Comparison
| 属性 | Red Knot | American Woodcock |
|---|---|---|
| 学名 | Calidris canutus | Scolopax minor |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Scolopacidae | Scolopacidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 32.9 cm (13.0 in) | 26.0 cm (10.2 in) |
| 体重 | 187.0 g (6.60 oz) | 192.0 g (6.77 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 3-4 | 3-4 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Near Threatened
Red Knot
Least Concern
American Woodcock
About These Birds
Red Knot
北極圏のカナダ・ロシア・グリーンランドで繁殖し、世界中の海岸で越冬するシギ(体長23〜26cm)。夏羽は赤褐色の胸と体が鮮やか。Calidris canutus(コオバシギ)は世界最長の渡りをする鳥の一つで、年間30,000kmを超す渡りを行うものもある。渡りの中継地での保全が国際的課題。Scolopacidae科。
American Woodcock
American Woodcock: 25–31 cm, rotund crepuscular wader with cryptic dead-leaf plumage, large eyes set high on the head, and an extremely long flexible bill for probing earthworms. Inhabits moist woodland and shrubby margins in eastern North America; winters in southern US. Famous for spiralling courtship 'sky dance.' Migratory.