Accordingly Caswall ordered his men to construct an immense kite, adhering as well as they could to the lines of a hawk.

Then he and his men, with a sufficiency of cord, began to fly it high overhead.

The experience of China was repeated.

The moment the kite rose, the birds hid or sought shelter.

The following morning, the kite was still flying high, no bird was to be seen as far as the eye could reach from Castra Regis.