Black Heron vs Ascension Night-heron
Egretta ardesiaca comparé à Nycticorax olsoni
Side-by-Side Comparison
| Attribut | Black Heron | Ascension Night-heron |
|---|---|---|
| Nom scientifique | Egretta ardesiaca | Nycticorax olsoni |
| Ordre | Pelecaniformes | Pelecaniformes |
| Famille | Ardeidae | Ardeidae |
| Statut de conservation | Least Concern | Not Evaluated |
| Longueur | — | — |
| Envergure | 49,0 cm (19.3 in) | — |
| Poids | 330,0 g (11.64 oz) | 624,57 g (22.03 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 2-4 | -- |
| Population Trend | — | — |
Habitat Comparison
Statut de conservation
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.