WHITE-FRONTED SHEARWATER. 
There is no standard in the depth of the holes, some being over eight feet 
in length and curved ; they are dug in the earth between a loose slope and the 
upper part of a precipice. Some go straight down about a foot and then follow 
the contour of the slope. In places overgrown with weeds, the entrances 
to several holes are connected by many passages running through the weeds 
like tunnels. Not a few of the passages meet under the earth. After frequent 
use the floor of the passages is trodden down, as though swept. 
Where a rock is at the entrance, it becomes coated with white powder from 
the birds rubbing against it. 
No birds were observed on the island during the day, but each hole con¬ 
tained a pair at night. In Juty only egg-shells were found. 
When handling the birds, gloves were necessary to prevent the birds 
injuring the hands. The birds when caught in the holes all had their heads 
turned inwards. When drawn out, the birds bit and scratched one another. 
Those flying around w r ere making a noise like that made by a Kite (Milvus 
lineatus), which they kept up all night. 
Judging by the investigations, the number of birds on this island could 
not be less than 10,000. 
Mr. Momiyama also added the following facts and extra breeding places :— 
Hatidio-sima (or Hacliijio-jima), Lat. 33° 6' N., Long. 130° 50' E. 
Four adult males captured on July 20th, and a downy young on the 24th 
of August. 
Ko-dima (or Ko-jima, near Hatidio-sima, pref. Sliimane). Captured 
a juvenile with down on the ruider-part only. 
Aoga-sima (or Aoga-shima), Lat. 32° 28' N., Long. 139° 43' E. Three 
adult males captured on July 20th. 
Tori-sima (or Tori-sliima), Lat. 30° 30' N., Long. 140° 15' E. All the 
above-cited birds were captured in their breeding-holes. 
These birds therefore breed between Lat. 30° 30' to 41° 20' N., and Long. 
124° 50' to 141° 58' E. (only one in 124° 50' out of ten records), or roughly 
between North Latitudes 30° to 40° and East Longitudes 131° to 140°. 
17 
