White Ibis vs Glossy Ibis

In short

The White Ibis is a striking white bird with a long, decurved bill, while the Glossy Ibis is metallic bronze with a green tinge. Both species are wading birds found in wetland habitats, but their plumage and regional presence differ significantly.

Identification tips

• Look for the white plumage and pinkish bill of the White Ibis versus the dark, metallic bronze of the Glossy Ibis.
• White Ibis is more likely in southeastern U.S. wetlands, while Glossy Ibis can be found in a broader range of habitats and regions.
• Both species have long, decurved bills, but the color and sheen of the plumage are the most reliable field marks.

Size

Both species are similar in size, typical of medium-sized wading birds.

Plumage

The White Ibis is predominantly white with a pinkish bill and legs, whereas the Glossy Ibis has a dark, metallic bronze plumage with a green sheen, making it distinctively darker.

Behaviour

Both species are gregarious and often found in flocks. The White Ibis is known for its large conspecific flocks, while the Glossy Ibis often nests with herons and disperses widely after breeding.

Habitat

White Ibis primarily inhabits freshwater and estuarine wetlands in the southeastern U.S., while the Glossy Ibis is more cosmopolitan, found in various inland wetlands and coastal lagoons across multiple continents.

Voice

Vocalizations are not a primary distinguishing feature between these species, and specific calls are not detailed in the sources.