Despite it's cheerful nature the Robin is quite an aggressive and territorial species with males sometimes fighting to the death to defend their adopted boundaries. Unlike many other birds Robins remain on their own during autumn and winter and will sing to proclaim their territory. What resonates as a cheerful winter song to us is actually a warning to ward of other Robins coming too close!
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", which is really more a deep orange colour. The younger birds have no red in their plumage and have spotty brown coloured feathers.