saí-andorinha vs saíra-de-papo-preto

The Swallow Tanager and Guira Tanager can be distinguished primarily by their plumage. The Swallow Tanager is notable for its striking blue-green coloration, while the Guira Tanager features a more subdued olive-yellow tone. These differences are most apparent in adult males.

Look for the blue-green plumage of the Swallow Tanager in adult males. In contrast, the Guira Tanager will have a more olive-yellow coloration. These color differences are the most reliable field marks when distinguishing between the two species.

Swallow Tanagers are predominantly blue-green, especially in adult males, whereas Guira Tanagers have an olive-yellow coloration. Female Swallow Tanagers are duller with more greenish tones, while female Guira Tanagers maintain the olive-yellow hue.