170 VISCOUNT WALDEN ON THE BIRDS 
removes all doubts as to the existence of such a form in the Philippines; and we may 
further safely assume that it is the same as Sonnerat’s species. 
In India there appear to be two well-inarked species of black-headed Shrikes :—one, 
the largest, with the whole back in the adult bright rufous, inhabiting N ipaul, Dar- 
jeeling and Assam, and named by Mr. Hodgson L. tricolor (Ind. Rev. 1837, p. 446, 
ex Nipaul; Gray & Mitch. Gen. pl. 71); the other, in the adult, with the upper 
back ashy-grey, and the lower pale ferruginous, inhabiting Goomsoor, ‘Bengal, and 
said to extend into Arracan (L. nigriceps, Frank; Jerd. Hl. Ind. Orn. pl. 17). It is 
true that Dr. Jerdon, who at one time maintained this view, altered it (/.c.) out of 
deference to Mr. Blyth; but my acquaintance with the two birds bears out Dr. Jerdon’s 
original opinion. Dr. Meyer’s Zebu example has the upper back ashy grey, as in L. 
nigriceps, this colour descending much lower than in the Indian form, the uropygium 
and upper tail-coverts only being ferruginous; nor does the black on the nape extend 
so low down as in either of the Indian species. ‘The Zebu bird, which is marked a 
male by Dr. Meyer, does not appear to be fully adult; and without an opportunity of 
comparing more examples, I am disinclined to assert that it differs specifically from 
L. nigriceps. 
Longitudo 
alee. caude. tarsi. 
L.nasutus . . . 3°50 5 1:25. ¢. Zebu, in April. 
L. nigriceps . . «3°37 4:87 1:20. Adult. Rognathpoor, Bengal. 
L. tricolor . . . 3°75 5:78 1:25. Adult. Nipaul. 
> he “So 5°13 1:25. Adult. Mymensing. 
< eo HallZ 1:25. Immature. Darjeeling. 
4a fee 30S 4°88 1:25. ¢,not quite adult. Base of Garos. 
71. Lanrus scHACH. 
Lanius a-scack, Osbeck, Ostind. Resa, p. 227, “ vicinity of Canton ” (1757). 
Lanius schach, J. G. Georgi, Osbeck, Reise Ostind. China (German transl.) p. 296 (1765). 
Lanius schach, Linn. S. N. i. p. 136, no. 14 (1766), ex Osbeck; J. R. Forster, Osbeck, Voy. China, 
East Indies (Eng. tr.) i. p. 367; ii. p. 8325 (1771) ; Bp. Consp. i. p. 364. 
Lanius macrourus, Cuy., Mus. Paris Pucheran, Archiv. Mus. vii. p. 324 (1854-55). 
Lanius chinensis, J. B. Gray, Zool. Mise. p. 1, “ China” (1831). 
Prince Bonaparte (/. c.) includes the Philippines within the range of this Shrike; 
and upon his authority (the only one, it is true, I have been able to discover) it is 
admitted in this list. The Javan and Timor form (Lanius bentet, Horsf.,=Lanius 
pyrrhonotus, Vieillot) is considerably smaller, and the black on the forehead recedes 
more than in the Chinese species. In dimensions it agrees with Lanius erythronotus, 
Vigors, from which species it can only be distinguished by the greater extent of black 
on the forehead. In fact Z. dentet is a link between L. erythronotus and L. nigriceps 
and the other black-headed forms, Lanius schach being a large form of L. erythronotus. 
