Definition of: redstart

(red′stärt′) noun
1. A small singing bird (genus Phoenicura) allied to the warblers; especially, the common Old World redstart (P. phoenicura), dark–gray, with a black throat, white forehead, and rust–red breast, sides, and tail: also called brantail.
2. A small fly–catching warbler (genus Setophaga), especially S. ruticilla, with bright orange–red patches, common in eastern North America. [<RED¹ + START²]