The term "redstart" refers to a group of songbirds, including Old World flycatchers (Phoenicurus) and New World warblers (Myioborus), which are not closely related evolutionarily. Although primarily a zoological term, it appears in literature with varied meanings. Authors such as Douglas Dewar highlight its connection to birds, while others, like Jesse F.
Bone and Boyd Cable, use it as a name or metaphor, reflecting human stories. Agatha Christie employs "red signal" as a thematic element, and Algernon Blackwood mentions "Redskin" to refer to Indigenous people. These varied uses demonstrate the term’s flexibility, linking natural history with symbolic significance in literary works.