STRIGINJE. BUBO. ULULA. 
63 
pylorus without valvular prominences ; intestine of moderate 
length, rather wide ; coeca large, oblong, narrowed at the 
base ; cloaca very large, globular. Nostrils roundish-ellip- 
tical. Eyes extremely large, fixed, oblique. Conch simple, 
elliptical, from a third to half the height of the skull. Head 
very large, broad ; neck short ; body stout, much narrowed 
behind. Legs rather short, strong ; tarsus short, closely 
i feathered ; toes short, strong, feathered, with two terminal 
scutella ; claws long, well curved, tapering, very acute. 
Plumage soft and very full ; facial disks incomplete ; ruff 
incomplete and inconspicuous ; wings long, very broad, much 
I rounded, third quill longest ; outer three quills sinuate on 
the inner web ; tail of moderate length, broad, rounded. 
The birds of this genus are among the largest of the 
family. They prey on quadrupeds and birds, are not entirely 
nocturnal, reside in wooded regions, and nestle on rocks, 
trees, or the ground. 
25. Bubo maximus. Great Eagle Owl. 
Tufts of about eighteen feathers, projecting more than two 
inches beyond the plumage of the head ; upper parts varie- 
gated with dark brown and light reddish-yellow ; lower parts 
of the latter colour, with longitudinal blackish-brown spots 
and streaks, and numerous transverse undulating lines ; facial 
disks greyish-brown, obscurely barred ; throat with a patch of 
white ; bill and claws greyish-blue at the base, black toward 
the end. 
Male, 24, 58, 19, 2J, 2/^, Female, 26, 61. 
Generally distributed in the wilder parts of Europe. In- 
dividuals have been obtained in several districts of England ; 
but it does not now breed in any part of Britain. 
Great-Horned Owl. Great-Eared Owl. Great Owl. 
Strix Bubo, Linn. Syst. Nat. i. 131.— Strix Bubo, Temm. 
Man. d’Ornith, i. 100.— Bubo maximus, Great Eagle-Owl, 
MacGillivray, Brit. Birds, iii. 428. 
GENUS XV. ULULA. HOOTING-OWL, 
Bill short, strong, compressed toward the end ; upper 
mandible with the dorsal line decurved from the base, the 
tip trigonal, decurved, acute ; lower mandible with the angle 
I wide, the dorsal line convex, the edges with a sinus close to 
