Jackdaw is a member of the crow family, and there are several synonyms used to describe this bird. One of the most popular is the Western Jackdaw, which is commonly found in Europe and has a distinctive grey neck and head. Another synonym for the jackdaw is the Eurasian jackdaw, which is slightly larger, with a more extensive grey head and neck. There are also regional synonyms for the jackdaw, such as the Northern jackdaw and the Daurian jackdaw. Some other informal terms used to describe the bird include "Kae" in Scotland and "Scald-crow" in parts of England.