INHABITING THE PHILIPPINE ARCHIPELAGO. 185 
Cercroris, Boie. 
89. CECROPIS DAURICA. 
Hirundo daurica, Linn. Mantissa Plant. p. 528 (1771), ex Laxman!; Brandt, Ann. & Mag. Nat. 
Hist. xi. p. 114. 
Hirundo alpestris, Pallas, Reisen Russischen Reichs, ii. p. 709, no. 19, “ Altai and Siberian Alps” 
(1773) ; Zoogr. Rosso-Asiatica, i. p. 534, pl. xxx.; Kittlitz, Liitke, Voy. (Postels) iii. p. 327. 
Hab. Manilla (Kittlitz). 
Brandt (/. c.) thus identified a Swallow brought from Manilla by Kittlitz. It pro- 
bably belongs to the race designated Hirundo striolata, Temm., ex Java, in the ‘ Fauna 
Japonica,’ and which is said to frequent the islands of the Malay archipelago (cf. 
Swinh. P. Z. S. 1871, p. 346). 
Dr. v. Martens mentions having observed a Swallow with the uropygium of a pale 
isabelline colour’, very common about and in the houses of Bafios. With doubt he 
identified it with H. daurica (Preus. Exp. O.-Asien, Zool. i. p. 188). 
ORIOLID. 
Broperipus, Bonaparte. 
90. * BRODERIPUS ACRORHYNCHUS. 
Oriolus acrorhynchus, Vigors, P. Z.S. 1831, p. 97, “neighbourhood of Manilla;” Gray & Mitch. 
Gen. Birds, pl. 58; Walden & Layard, Ibis, 1872, p. 101. 
Hab. Zebu, Negros, Guimaras, Luzon. Bill pink, rose-coloured; feet and claws 
blue-grey ; Luzon examples (JJeye7). 
A large series of individuals obtained by Dr. Meyer illustrates the varying relative 
proportion of yellow and black on the head in different examples of this fine Oriole. In 
a Luzon female, immature, middle rectrices tinged with green; the enclosed yellow 
frontal space extends back fully for £ of an inch from the base of the culmen. In a 
perfectly adult Guimaras male with jet-black middle rectrices and quills, and rich orange- 
golden dorsal plumage, the forehead only is yellow, that colour occupying a depth of 
only 3 of an inch. This example, in the distribution and proportions of its black and 
yellow plumage, is almost absolutely identical with a Sula-Island specimen of B. frou- 
talis (Wallace). The Sula example, however, has the middle pair of rectrices entirely 
black, whereas all the Philippine examples have those feathers more or less tipped with 
yellow. Moreover the Philippine is a much larger bird, with a longer wing and bill. 
The extent of yellow at the termination of the middle pair of rectrices varies very con- 
siderably. In a Negros male in full golden-orange plumage the tips of the middle pair 
1 T have not been able to consult Laxman (Act. Holm. 1769, xxx. pl. 7. fig. 1); butit may be that he first 
bestowed the title of daurica, which Linnzus adopted. 
* In the later List (J. f. 0. 1866) this colour is described as being isabelline yellow. 
