166 
AVES. 
Strix nyctea. — The Snowy Owl. 
Plate XXXVIII. fig-. 3. 
Snowy white, with transverse bars of brown; tail short; 
head very small; irides yellow; beak black, much curved; 
feet feathered to the talons, which are black. Female two feet 
in length. Inhabits Europe and America. 
Sub-Genus 2. — Strix. — Savigny. — Ears large, wide and 
open, furnished in front with a broad membranous operculum ; 
discs around the eyes large ; beak nearly straight from its base, 
and arched towards the point; legs covered with slender fea¬ 
thers. 
Strix flammed —The Barn Owl. 
Plate XXXIX. fig. 3. 
Head, back, and wings, pale chestnut, beautifully speckled 
with white, and very fine gray and brown spots, intermixed 
with white ; under parts snowy white, with a few distant spots 
of brown; bill horn-colour; feet and toes covered with short 
hairs ; iris yellow. Thirteen inches long. Inhabits Europe. 
Strix stridula .— The Tawny Owl. 
Plate XXXIX. fig. 4. 
Upper parts tawny, speckled with dark brown and black ; with 
three rows of white spots on the wing coverts ; breast and belly 
pale yellow, marked with narrow dark streaks pointing down¬ 
wards ; talons large, white, and much hooked. Fifteen inches 
long. Inhabits Europe. 
Sub-Genus 3. — Bubo. — Gerin. — Beak strongly inclined 
from the base; nostrils large, oblique, and concealed; ears of 
moderate size; head surmounted by tufts of feathers, somewhat 
resembling horns. 
Strix otus .— The Long-Eared Owl. 
, Plate XXXIX. fig. 2. 
Upper parts ochraceous yellow, streaked with black, and 
