116 The Common Crane 
watercourse about half a mile to the north of the point where they 
had given their acrobatic performance of the previous day. Pre- 
sently they began to move south-westward and after a time one 
NEST OF THE COMMON CRANE. (Photographed from the saddle.) 
suddenly disappeared whilst the other took wing and alighted about 
a quarter of a mile beyond and at once took up a position on 
sentry duty. I felt convinced that the bird which had disappeared 
