White Ibis vs Scarlet Ibis

In short

The White Ibis and Scarlet Ibis are closely related wading birds, primarily distinguished by their plumage. While both species share a similar structure with long, decurved bills, the White Ibis is predominantly white, whereas the Scarlet Ibis is vivid red with black-tipped wings. They often inhabit similar wetland environments, making color the most reliable field mark.

Identification tips

1. Plumage color: Look for the bright white of the White Ibis versus the vivid red of the Scarlet Ibis. 2. Location: Consider geographic range—White Ibis in the southeastern U.S., Scarlet Ibis in South America. 3. Mixed flocks: Be aware of potential hybridization where ranges overlap, especially in the llanos.

Size

Both species are similar in size, with no significant differences in body structure or bill length.

Plumage

The White Ibis is entirely white with a pinkish face and bill, while the Scarlet Ibis is bright red with black tips on the outer primaries. This color difference is the most reliable way to distinguish between the two.

Behaviour

Both species are social, often seen in large flocks. They forage by probing in mud or shallow water with their bills.

Habitat

Both species occupy wetland habitats, including marshes and swamps. The White Ibis is more common in the southeastern United States, while the Scarlet Ibis is found in coastal and interior regions of South America.

Voice

Vocalizations are not a primary distinguishing feature between these species, as both have similar calls typical of ibises.