Prunella fulvescens has been divided into "five races:—P. f, fulvescens, Turkestan; P. f. dresseri Hartert, East Turkestan ; P. f. dahuricus Taczanowski, E. Siberia; P. f. ocularis Badde, Kus-jurdi, Caucasian Mt. and P. f. fagani O. Grant, Arabia.
Of these the first two are supposed to come within the limits of this work, P. f. fulvescens being found in Tibet and Sikkim and P. f. dresseri in Gilgit, Kashmir, etc. The former is supposed to be a darker race,* the latter a paler one, but they are extremely difficult to divide and among the specimens retained in the British Museum under the name of P. f. fulvescens there are two collected by Przewalsky on the borders of Tibet which are paler than 9 out of 10 of those in the series of P. f. dresseri. A third bird collected by the same naturalist from the Dytschu River is as dark as any of those from Turkestan and Kashmir.
Individuals of this Hedge-sparrow evidently vary greatly and I fail to find any distinguishing feature in colour or size between f dresseri and f. fulvescens. I therefore place all our Indian birds under the latter name.