The Blackbird is also known as the Eurasian blackbird in North America, in order to distinguish it from the unrelated New World blackbirds, here in the UK we just call it a Blackbird. They are a member of the Thrush family.
Adult male blackbirds have black plumage and, during the breeding season, they have both a yellow eye-ring and bill. Out of the breeding season, the male may have a dull bill and no eye-ring. Females are brown, often with a paler throat patch.