Red Knot vs American Woodcock
Calidris canutus 对比 Scolopax minor
Side-by-Side Comparison
| 属性 | Red Knot | American Woodcock |
|---|---|---|
| 学名 | Calidris canutus | Scolopax minor |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Scolopacidae | Scolopacidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 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 | -- | -- |
| 产卵数 | 3-4 | 3-4 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Red Knot
Least Concern
American Woodcock
About These Birds
Red Knot
红腹滨鹬(约135克)进行壮观的长距离迁徙,从北极繁殖地飞往南半球越冬地。繁殖羽呈砖红色。以双壳类和其他无脊椎动物为食,在中途停歇地对鸮鲎卵的依赖尤为关键。近危;部分迁徙种群因猎捕鲎和食物枯竭而数量急剧下降。
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.