Fig. (3) Distribution of different forms of the complex of Yellow Wagtails within its range. Blue color represents “black-headed” forms (without eyebrows): M.th. – thunbergii; M.p. – plexa; M.c. – cinereocapilla; M.fel. – feldegg; M.m. – macronyx. Orange color represents “light-headed” forms (with eyebrows): M.i. – iberiae; M.fl. - flavissima; M.f. – flava; M.b. – bema; M.ts. – tschutschensis; M.z. – zaissanensis; M.l. – leucocephala; M.t. – taivana; M.s. – simillima. Hatched zones represent the area where several forms can be observed. (By Gladkov, 1954; Ödeen & Björklund 2003; Ryabitsev 2014; our observations).