218 
ON TUB CLASSIFICATION OP BIRDS. 
NyctipbteSjSw. Sparrow Owls. 
Size very small. Facial disk 
obsolete. Ears very small. 
Wings very short, rounded. 
Tail moderate, rounded. Tarsi 
of variable length. Middle 
toe lengthened, I 99 .) 
*N. perlatus. W. Af. i. 130. tcunicularia. Bon. Am. O. pi. I. 
SuRNiA, Dumeril. Hawk Owls. Size large. Head 
and ears small. Facial disk imperfect. Wings long. 
T ail considerably lengthened, cuneated, or graduated. 
Flight diurnal. 
S. funeria. Wils. vi. pi. SO. f. 6. 
Order II. INSESSORES. Perching Birds. 
Tride DENTIROSTRES. 
Family LANIAD.®. Shrikes. 
Bill with a very deep notch, or prominent tooth, at the 
tip of the upper mandible. Claws acute. 
SuBFAM. LANIANiE. True Shrikes. 
Lateral toes equal and free. Claws slender, acute. Bill 
generally short, with the tooth very prominent. 
Lanius, Linn. Bill very short, strongly hooked ; the 
» Erroneously named a Sailophilus. 
t Probably the tyiie of the whole. 
