Chestnut-bellied Sandgrouse vs Black-bellied Sandgrouse
Pterocles exustus 对比 Pterocles orientalis
Side-by-Side Comparison
| 属性 | Chestnut-bellied Sandgrouse | Black-bellied Sandgrouse |
|---|---|---|
| 学名 | Pterocles exustus | Pterocles orientalis |
| 目 | Pterocliformes | Pterocliformes |
| 科 | Pteroclidae | Pteroclidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 35.0 cm (13.8 in) | 45.6 cm (18.0 in) |
| 体重 | 211.5 g (7.46 oz) | 427.5 g (15.08 oz) |
| 食性 | -- | -- |
| 产卵数 | 3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Chestnut-bellied Sandgrouse
Loud, carrying call with resonant quality; deep notes given from ground across open terrain. Vocalization pattern typical of this species in its native habitat.
Black-bellied Sandgrouse
Loud, carrying call with resonant quality; deep notes carrying well across open dry terrain. Vocalization pattern typical of this species in its native habitat.
保护状况
Chestnut-bellied Sandgrouse
Black-bellied Sandgrouse
How to Tell Them Apart
Chestnut-bellied Sandgrouse
Chestnut-bellied Sandgrouse: males with chestnut belly; sandy above; black belly spot; narrow white stripe; pin-tipped tail; dimorphic
Black-bellied Sandgrouse
Black-bellied Sandgrouse: males with black belly; sandy-spotted above; chestnut and black neck bands; white flanks; very dimorphic
About These Birds
Chestnut-bellied Sandgrouse
Chestnut-bellied Sandgrouse (Pterocles exustus) — 30–35 cm. Sandy above; male with chestnut belly patch; slender pointed tail. Widespread in arid and semi-arid zones from West Africa to India; also the Middle East and Horn of Africa. Granivore; colonial drinker at waterholes. Male carries water in belly feathers.
Black-bellied Sandgrouse
黑腹沙鸡（约360克）雄鸟具有复杂的棕色、黑色和黄色羽毛及黑色腹部。广布于中亚至伊比利亚半岛的干旱和半干旱草地及荒漠。以种子为食，常长距离飞至水源饮水，雄鸟会用腹部羽毛向雏鸟运水。近危；因农业变化和干旱导致草地退化而面临威胁。