Serins can be defined as a group of small passerine birds that are found across Europe, Asia and Africa. These birds are known for their melodious singing and are sometimes kept as pets. Synonyms for the word serins include canaries, finches, songbirds, warblers, and thrushes. Canaries are particularly well known for their singing abilities and are often kept in cages as household companions. Finches are another popular type of serin and are easily identifiable by their small, stout bodies and conical beaks. Songbirds, including thrushes and warblers, are also part of the serin family and are known for their beautiful singing voices and bright, colorful plumage.