·noun An American fly-catching warbler (Setophaga ruticilla). The male is black, with large patches of orange-red on the sides, wings, and tail. The female is olive, with yellow patches.
II. Redstart ·noun A small, handsome European singing bird (Ruticilla phoenicurus), allied to the nightingale;
— called also redtail, brantail, fireflirt, firetail. The black redstart is P.tithys. The name is also applied to several other species of Ruticilla amnd allied genera, native of India.