Plumbeous Ibis vs Black-headed Ibis
Theristicus caerulescens compared with Threskiornis melanocephalus
Side-by-Side Comparison
| Attribute | Plumbeous Ibis | Black-headed Ibis |
|---|---|---|
| Scientific Name | Theristicus caerulescens | Threskiornis melanocephalus |
| Order | Pelecaniformes | Pelecaniformes |
| Family | Threskiornithidae | Threskiornithidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 81.6 cm (32.1 in) | 70.0 cm (27.6 in) |
| Weight | 1500.0 g (52.91 oz) | 1303.0 g (45.96 oz) |
| Diet | -- | -- |
| Clutch Size | 2-3 | 2-4 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Plumbeous Ibis
Least Concern
Black-headed Ibis
About These Birds
Plumbeous Ibis
73 cm. Pale grey-blue with white underparts; bare blue-grey facial skin; yellow bill. Resident in South American wetlands from Bolivia to Argentina. Feeds on fish, frogs, and invertebrates in shallow marshes and river margins. Near Threatened; affected by wetland drainage and hunting.
Black-headed Ibis
65–76 cm. White with bare black head; black wingtips and neck feathers. Resident across South and Southeast Asia in wetlands, rice paddies, and grasslands. Near Threatened; declining due to habitat loss and hunting. Feeds by probing in shallow water for fish and invertebrates; colonial nester.