Black Heron vs Ascension Night-heron
Egretta ardesiaca в сравнении с Nycticorax olsoni
Side-by-Side Comparison
| Характеристика | Black Heron | Ascension Night-heron |
|---|---|---|
| Научное название | Egretta ardesiaca | Nycticorax olsoni |
| Отряд | Pelecaniformes | Pelecaniformes |
| Семейство | Ardeidae | Ardeidae |
| Охранный статус | Least Concern | Not Evaluated |
| Длина | — | — |
| Размах крыльев | 49,0 cm (19.3 in) | — |
| Масса | 330,0 g (11.64 oz) | 624,57 g (22.03 oz) |
| Питание | -- | -- |
| Размер кладки | 2-4 | -- |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
Black Heron
Ascension Night-heron
About These Birds
Black Heron
The Black Heron is a medium-sized, all-black heron famous for its unique canopy-feeding technique, in which it spreads its wings like an umbrella over the water to create shade and attract fish. It inhabits shallow freshwater lakes, marshes, and flooded grasslands across sub-Saharan Africa and Madagascar. It feeds primarily on small fish and aquatic invertebrates attracted to the shade created by its distinctive wing canopy.
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.