Male and female scarlet robins differ in their plumage significantly more than their European or American counterparts. Males are black with prominent bright red breasts and a white patch above the bill (frontal patch). Females, on the other hand, are brown with a rusty reddish-orange breast and white underparts.

Is there a difference between male and female robins?

The male robin is brighter in color than the female. His eye ring, bright beak color, black head, and white throat markings all show this bird is a male. The female's feathers look washed out and faded compared to the darker, richer colors of the male.

Why are some robins redder than others?

But why the red color? The colors of birds depend on the pigments their bodies can manufacture or get from food. Robins have an easy time making the red pigment, and their bodies simply can't make many other colors.