Black Heron vs Ascension Night-heron
Egretta ardesiaca 对比 Nycticorax olsoni
Side-by-Side Comparison
| 属性 | Black Heron | Ascension Night-heron |
|---|---|---|
| 学名 | Egretta ardesiaca | Nycticorax olsoni |
| 目 | Pelecaniformes | Pelecaniformes |
| 科 | Ardeidae | Ardeidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | 49.0 cm (19.3 in) | — |
| 体重 | 330.0 g (11.64 oz) | 624.57 g (22.03 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-4 | -- |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black Heron
Not Evaluated
Ascension Night-heron
About These Birds
Black Heron
黑鹭。全身黑色，具有独特的伞式捕食行为（展翅形成遮光伞）。分布于撒哈拉以南非洲和马达加斯加。
Ascension Night-heron
The Ascension Night-heron was a flightless heron known from subfossil remains on Ascension Island in the South Atlantic. Weighing an estimated 624g, it was likely driven to extinction by human activity and introduced predators. It is currently listed as Not Evaluated by conservation assessments.