There are two well-known species of Robins, the American Robin (Turdus migratorius,) and the Old World Robin (Erithacus rubecula,) also known as Robin Redbreast. The American Robin is larger than the Robin Redbreast. Both have distinctly colored chests, the Redbreast featuring orange chest, and the American Robin featuring a peculiar rust red color of the chest. These birds are friendly and intelligent, and they can get used to various garden conditions.