Male and female robins are virtually identical in appearance with a brown crown, wings, upper parts and tail, a grey band along the sides of the breast, a white belly and of course the famous "red breast". The younger birds have no red in their plumage and have spotty brown coloured feathers.
Have you noticed a robin’s red-breast is actually orange? The bird was named before the English language had a word for the colour ‘orange’. Many things that were really orange were called red instead even though we did have the word for ‘orange’ as in the fruit. The colour orange was not named as a colour in English until the 16th century.