Viuda del Paraíso vs Viuda Sombría

The Eastern Paradise-Whydah and Dusky Indigobird can be distinguished primarily by their tail length and plumage during the breeding season. The Eastern Paradise-Whydah is known for its long, flowing tail feathers, while the Dusky Indigobird lacks these dramatic tail features.

1. Tail length: Look for the Eastern Paradise-Whydah's long tail feathers during the breeding season. 2. Plumage: Note the more uniform dark plumage of the Dusky Indigobird outside the breeding season.

During the breeding season, the Eastern Paradise-Whydah exhibits long, ornate tail feathers, which are absent in the Dusky Indigobird. Outside of the breeding season, both species may appear similar, but the Dusky Indigobird typically maintains a more uniform dark plumage.