32. Parus minor.
The Japanese Grey Tit.
Parus minor, Temm. & Schley. Faun. Jap., Aves, p. 70, pl. 33 (1842) ; Gadow, Cat. B. M. viii, p. 15. Parus commixtus, Swinh. Ibis, 1868, p. 63; Wald. in Bl. Birds Burm. p. 111; Hume & Dav. S. F. vi, p. 376 ; Hume, Cat. no. 645 bis.
Coloration. Resembles P. atriceps. Differs in having the back and scapulars yellowish green instead of ashy grey and in having the fifth pair of tail-feathers black with a small white tip.
Iris hair-brown ; bill black; legs plumbeous ( Wardlaw Ramsay).
Of the same size as P. atriceps.
The amount of black in the fifth pair of tail-feathers is reduced towards the extreme south-western limit of the range, as on the Burmese frontier. No other variation occurs, the back being as green in Karennee examples as in typical Japanese ones.
The specimen procured by Davison in the Salween district has the fifth pair of rectrices white, with a broad black band on the inner webs reaching nearly to the tip. In two Karennee examples one has these feathers black with a white tip about half an inch long, and the other resembles the Salween specimen. All three can be nearly matched by Japanese birds.
The tail of P. minor varies a good deal in Length, but the average Length of the tail of ten Japanese birds is exactly the same as that of ten Indian specimens of P. atriceps selected at random.
Distribution. Karennee and the Salween district of Tenasserim, extending through China to Japan.