BIRDS ATIIENINAE GLAUCIDIUM. 
61 
tarsus so completely covered, nor the preceding with it so hare as represented, in his figures, 
which appear, however, to he intended to represent the two species here described. 
After careful examination and comparison of the specimens in the present collection with 
others from various parts of western South America, we can detect no differences whatever, all 
of them being apparently quite identical. The inspection of specimens of the present bird 
may have induced the Prince Bonaparte to alter his views respecting the distinctness of the 
North American from the South American bird, which he does in Annals of the New York 
Lyceum of Natural History, 11, p. 435, (1826,) when he declares his conviction of their 
identity, and proposes to withdraw his proposed name, Strix hypugcea. This name is, however, 
applicable to the preceding species, which is distinct, though never before so given by any 
American author. 
Our friend, Colonel George A. McCall, late inspector general in the United States army, has 
constantly assured us, for several years past, that the two species given above were distinct, and 
readily distinguished from each other, and he designated the characters of each, and the 
difference in their localities. In the present large collection we find the views of this very 
accurate naturalist confirmed in the most conclusive manner. 
List of specimens. 
6 
55 
O 
Sex and age. 
Locality. 
When collected. 
\* 
Collected by— 
Measurements. 
Remarks. 
Whence obtained. 
| Original 
Length. 
Extent 
Wing. 
4396 
4397 
5486 
5190 
419B 
6681 
5896 
5897 
4627 
4911 
4912 
43,0 
4614 
9168 
Dr. Geo. Suckley... 
160 
9.75 
26 00 
24.00 
7.75 
7.27 
<? 
9 
8 
Lt. R. S.Williamson 
Los Angeles, Cal 
March 4, 1854 
Lt. A. Whipple.... 
191 
KennerlyandMijll- 
Dr J F Hammond 
10.00 
10.00 
•J5.00 
23 50 
7.00 
6.75 
Iris yellow 
Ho 
flO i 
A. Cassidy 
6 
do 
Nov'r 9, 1854 
Uncompagre river, Utah.. 
1 
GLAUCIDIUM, Boie. 
Glaucidium, Boie, Isis, 1826, p. 970. 
Size very small ; head moderate, without ear-tufts ; wings moderate, or rather short ; tail short ; facial disk nearly obsolete ; 
bill short, rather wide, strong ; tarsi fully feathered ; claws rather long, curved, very sharp. 
This genus contains a few species only, amongst which are the smallest of known owls. 
