Green Ibis vs Plumbeous Ibis

The Green Ibis and Plumbeous Ibis can be distinguished by their bill and plumage color. The Green Ibis has a shorter, more decurved bill and a darker, greenish plumage, while the Plumbeous Ibis has a longer, straight bill and a more uniform grayish-blue plumage.

1. Bill shape: Green Ibis has a shorter, more decurved bill; Plumbeous Ibis has a longer, straight bill. 2. Plumage color: Green Ibis is dark greenish with iridescence; Plumbeous Ibis is grayish-blue. 3. Habitat preference: Note the surrounding environment; Green Ibis favors forested wetlands, while Plumbeous Ibis is in open areas. 4. Light conditions: Be aware that poor lighting can make the Green Ibis appear blackish.

Both species are similar in size, but the Plumbeous Ibis may appear slightly larger due to its longer bill.

The Green Ibis has a dark, iridescent green plumage, often appearing blackish in poor light. In contrast, the Plumbeous Ibis has a uniform grayish-blue plumage without iridescence.

Both species forage by probing mud with their bills, often seen alone or in pairs. Behavior is not a reliable differentiator.

The Green Ibis is more often found in forested wetlands, while the Plumbeous Ibis prefers open wet and dry habitats, including savannas and marshes.

Vocalizations differ, but specific calls are not well-documented here. Generally, ibises have harsh, grating calls.