of the United States. o7 
Inhabits North, and probably South America, as we 
strongly suspect Strix choliba, Vieill., a species taken from 
D’Azara, to be the present. Common in Pennsylvania and 
New Jersey in the autumn : retiring to the north in summer. 
SUBGENUS II. ULULA. 
Bubo , Syrnium , Sav ., Otas , Ulula, Bubo Syrnium Cuv. 
Conch of the ear ve*ry large, extended semicircularly from 
the bill to the top of the head, with a membranaceous oper- 
culum ; disk of ^lender feathers well marked and perfect ; 
feet thickly covered to the clawswith short feathers. Nocturnal. 
. f Head tufted. (Bubo, Otus , Cuv.) 
27. Strix virginiana, Gm (4.) Mottled ; primaries and tail 
feathers banded with black and dusky;* auricular conch re- 
stricted ; wings not reaching to the tip of the tail : very 
large. 
Great horned Owl , Strix virginiana , fVils. Am. Orn. vi . 
p. S~2.pl. 50. Jig. I- 
Inhabits more or less common throughout America, prin- 
cipally in deep swampy woods : connects admirably the two 
subgenera Surnia and Ulula. 
28. Strix otus, L. Mottled ; primaries banded with ferru- 
ginous ; tufts long; wings reaching beyond the tail. 
Long-eared Owl , Strix otus , Wils. Am. Orn. vi. p. 73 . 
pi. SI .fig. 3. 
Inhabits both continents ; common in Pennsylvania, es- 
pecially in the autumn : resident. 
29. Strix brachyotos, Gm. Whitish-ferruginous, spotted with 
dark brown ; tufts short, inconspicuous ; wings reaching to 
the tip of the tail. 
Female more intensely ferruginous. 
* But not with ferruginous as in S. bubo of Europe. 
Vol, II, 5 
