Ascension Night-heron vs Whistling Heron
Nycticorax olsoni 对比 Syrigma sibilatrix
Side-by-Side Comparison
| 属性 | Ascension Night-heron | Whistling Heron |
|---|---|---|
| 学名 | Nycticorax olsoni | Syrigma sibilatrix |
| 目 | Pelecaniformes | Pelecaniformes |
| 科 | Ardeidae | Ardeidae |
| 保护状况 | Not Evaluated | Least Concern |
| 体长 | — | — |
| 翼展 | — | 58.0 cm (22.8 in) |
| 体重 | 624.57 g (22.03 oz) | 462.5 g (16.31 oz) |
| 食性 | -- | -- |
| 产卵数 | -- | 3-4 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Not Evaluated
Ascension Night-heron
Least Concern
Whistling Heron
About These Birds
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.