DR. J. J. KAUP’S MONOGRAPH OF THE STRIGIDZ. 243 
Subgenus d. Urrua, Hodgs. 
Diagn.—Bill very strong and projected. The first wing-feather to the sixth clearly 
emarginated on the inner web, nearer to the base of the wing-feathers. Tarsi feathered ; 
toes thinly feathered. Nails of the usual form. 
The birds of this division show a greater affinity to the second subgenus, Bubo, than 
to the first, third, or fifth subgenera. Like Ketupa, they must have a rushing flight. 
From their very strong bill, powerful tarsi, and longer toes and nails, they would appear 
to be more rapacious than the second subgenus, Bubo. | 
Possibly they are not sleepy by daylight, as is the case with the true Bubo, which 
represents the genus Ofus in its genus. 
10. Buso coromanovs, G. R. Gray. 
Strix coromanda, Lath. 
Urrua coromanda, Hodgs. 
J. E. Gray, Ind. Zool. pl. 20. 
Diagn.—Size of Bubo africanus. Whole plumage ash-grey, with dark shaft-stripes 
and fine cross-lines. 
Descr.—The smallest species of all. Feather-horns on the outer webs dark brown. 
White spots on the exterior webs of the shoulder-coverts and on the small feathers of 
the wings. The wing-feathers light brown, pointed with broad dark-brown cross-bands. 
Tail with four or five blackish cross-bands. Under tail-coverts often with brown, 
black-margined, arrow-like spots. 
Hab. India. 
11. Buso ortentais, G. R. Gray. 
Stria orientalis, Horsf. Linn. Trans. 
sumatrana, Raffles. 
strepitans, Temm. Col. 1743, 229 juv. 
Bubo strepitans, Cuv. 
Diagn.—Size 370-475 mm. The veil not bounded by a black stripe. 
Descr.—A male specimen, of smaller dimensions, in the British Museum has the 
upper parts dark brown, with a great number of narrow rusty-yellowish bands, four 
to six on each feather; the under parts whitish, with a great number of black 
bands, four to six on each feather. A stripe over the eye to the longest feathers of 
the ear-horns nearly black. The base of the wings on the inner side whitish. The 
wings near the emarginations brownish, with two whitish irregular spots not reaching 
the shafts. The tail brown, with three to four narrow, very indistinct cross-bands, 
and broader greyish-white-spotted terminations. The under side of the tail at the base 
and the inner webs more whitish, and with three to four very irregular bands. Tarsi 
black, cross-banded. The bill and toes, which are completely naked, yellow. 
