STRIGIN^E. ASIO. 65 



sects, occasionally fish. Nestles in decayed trees, or on the 

 ground, laying three or four pure white eggs, an inch and 

 eleven-twelfths long, an inch and a half in breadth. 



Brown Owl. Tawny Owl. Grey Owl. Ivy Owl. Beech 

 Owl. Howlet. Jenny Howlet. Screech Owl. 



Strix Aluco and Stridula, Linn. Syst. Nat. 132, 133. Stri* 

 Aluco, Temm. Man. d'Orn. i. 89. Ulula Aluco, Tawny Owl, 

 MacGillivray, Brit. Birds, iii. 438. 



27. ULULA TENGMALMI. TENGMALM'S HOOTING-OWL. 



Upper parts chocolate-brown, spotted with white ; tail with 

 five rows of transversely elongated spots ; lower parts yellow- 

 ish-white, with longitudinal brown markings ; tarsi and toes 

 covered with downy feathers ; length about ten inches. 



Male, 10i, . . , 6{, 1, {, T 9 ? , T V Female, 1% ..., 7*. 



This species is said to inhabit the northern parts of Europe, 

 and to extend in diminished numbers as far south as France, 

 Switzerland, and Italy. In North America, it occurs, ac- 

 cording to Dr Richardson, from Great Slave Lake to the 

 United States. In England, a very few individuals have 

 been met with. 



Strix Tengmalmi, Gmel. Syst. Nat. i. 291. Strix Teng- 

 jnalmi, Temm. Man. d'Ornith. i. 94. Ulula Tengmalmi, 

 Tengmalm's Hooting Owl, MacGillivray, Brit. Birds, iii. 445. 



GENUS XVI. ASIO. TUFTED-OWL. 



Although the species of the genus Bubo are furnished with 

 tufts on the head, those of the present species are easily dis- 

 tinguished from them by the enormous size of their auditory 

 concha, and other peculiarities. Bill short, moderately stout, 

 compressed toward the end ; upper mandible with the dorsal 

 line decurved from the base, the tip acute, descending 

 obliquely ; lower mandible with the angle wide, the edges 

 with a slight sinus, close to the obliquely truncate tip. Mouth 

 very wide ; tongue short, narrow, oblong, deeply emarginate 

 and papillate at the base, its tip thin, narrow, emarginate ; 

 oesophagus very wide, without crop ; stomach large, roundish, 

 very thin, with a soft and somewhat rugous epithelium ; 

 pylorus with a thin margin ; intestine of moderate length 

 and width ; coeca of considerable length, oblong, contracted 

 toward the base ; cloaca globular, very large. Nostrils large, 

 oblong, oblique. Eyes very large, oblique. Conch extremely 



