Ascension Night-heron vs Zigzag Heron
Nycticorax olsoni compared with Zebrilus undulatus
Side-by-Side Comparison
| Attribute | Ascension Night-heron | Zigzag Heron |
|---|---|---|
| Scientific Name | Nycticorax olsoni | Zebrilus undulatus |
| Order | Pelecaniformes | Pelecaniformes |
| Family | Ardeidae | Ardeidae |
| Conservation Status | Not Evaluated | Least Concern |
| Length | — | — |
| Wingspan | — | 28.2 cm (11.1 in) |
| Weight | 624.57 g (22.03 oz) | 123.0 g (4.34 oz) |
| Diet | -- | -- |
| Clutch Size | -- | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Ascension Night-heron
Zigzag 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.
Zigzag Heron
The Zigzag Heron (Zebrilus undulatus) is one of the smallest and most enigmatic members of the family Ardeidae, found in tropical South America. It is the sole member of its genus and is among the least-known herons in the world due to its secretive habits and specialized habitat. Adults are intricately patterned with irregular zigzag lines and vermiculations of dark brown, rufous, and buff across the entire plumage — a cryptic pattern that provides near-perfect camouflage in its humid forest …