INHABITING THE PHILIPPINE ARCHIPELAGO. 139 
(11) Lorius garrulus (Linn.), Meyen, Nov. Act. vol. xvi. suppl. prim. p. 95. 
A purely Malaccan species, although stated by Meyen (/.c.) to come from the more 
southern Philippine islands. 
RAPACES. 
FALCONID. 
FALCONINA. 
HYPorRIoRcHIs, Boie. 
9. HyPoTRIORCHIS SEVERUS. 
Falco severus, Horsf. Tr. L. 8. xiii. p. 135, “ Java” (1821) ; Walden & Layard, Ibis, 1872, p. 98. 
Falco guttatus, G. R. Gray, Ann. N. H. xi. p. 371, ‘ Philippine Islands ” (1843). 
Hab. Philippines (G. R. Gray); Negros (L. C. Layard). 
An example of each of the two following species of Falcons, said to have been 
obtained in the Philippines, is contained in the Museum at Norwich. Although there 
is nothing absolutely impossible in either, or both, of these species occurring in the 
archipelago, I refrain from treating them as authentically ascertained Philippine species, 
the evidence in favour of their Philippine origin requiring confirmation. 
Falco peregrinus, Gm., an adult female, “ Manilla”? 
Falco melanogenys, Gould, a female, not quite mature, “ Philippines” ? 
Hirrax, Vigors. 
10. * HieRaX ERYTHROGENYS. 
Hierax erythrogenys, Vigors, P.Z.S. 1831, p. 96, “ neighbourhood of Manilla; ” Fraser, Zool. 
Typica, pl. 31. 
Falco sericeus, Kittlitz, Kupfert. pt. 1, p. 4, pl. 3. fig. 3, “ Philippines ” (1832)*; Mém. présentés 
a PAcad. St. Pétersb. vol. ii. pt. 1 & 2, p. 2, pl. 1, “ Luzon ” (1833). 
Falco gironnierti, Eydoux et Souleyet, Voy. Bonite, Ois. p. 71, pl. 1, “ Lucon” (1841). 
Terax erythrogenys, Vig., G. R. Gray, Hand-list, no. 221. 
Terax sericeus, Kittlitz, G. R. Gray, tom. cit. no, 222. 
Hab. Luzon (Meyer). 
Kaup in 1850 (Contrib. Orn. 52) united H. erythrogenys with H. sericeus, applying 
Vigors’s title to the male, and that of Kittlitz to the female. Dr. v. Martens (J. f. O. 
1866, p. 9) suggested that the two titles belonged to one and the same bird. Mr. J. 
H. Gurney writes to me that he considers //. erythrogenys, Vigors, to be the female 
(and probably the young male also) of H. sericeus (Kittlitz); also that M. Jules 
1 Strickland (Orn. Syn. p. 104) gives 1809 as the date. This must be an error; for Kittlitz first obtained 
the pair he described from in the year 1829, when with the Russian corvette ‘Senjavin’ at Manilla. 
