White-faced Ibis vs Green Ibis

In short

The White-faced Ibis (Plegadis chihi) and Green Ibis (Mesembrinibis cayennensis) are both ibises but can be distinguished by facial and plumage features. The White-faced Ibis has distinctive white facial feathers during the breeding season, while the Green Ibis lacks these and has a more uniform dark greenish coloration. Both species inhabit wetland areas but differ in their geographical ranges.

Identification tips

1. Look for the white facial feathers on the White-faced Ibis during the breeding season. 2. Observe the overall plumage: White-faced Ibis has iridescent plumage with a white face in breeding season, while Green Ibis is dark green throughout. 3. Consider the location: White-faced Ibis is more likely in the western U.S. and Mexico, whereas Green Ibis is found in Central and South America.

Size

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

Plumage

The White-faced Ibis has a white border around its face in breeding adults, while the Green Ibis is uniformly dark green with no white facial markings.

Behaviour

Both species forage in wetlands, but specific behaviors are not detailed in the sources.

Habitat

White-faced Ibis prefers freshwater wetlands in the western U.S. and Mexico, while the Green Ibis is found in tropical regions of Central and South America.