By these you can tell it from any of the real Hawks." "Does he build high up in a tree ?" asked Rap.

"I have never found his nest." "There is a good reason for that," said the Doctor.

"There is no nest.
Two eggs are laid on the bare ground, that is about the same color as the bird itself; and the eggs look too much like streaky pebbles to be easily seen.

When the young are hatched they keep still until they are able to fly, and are colored so exactly like the place upon which they rest that it is almost impossible to see them, even if you know where they are." "How much there is to learn!" sighed Nat.

"I'm afraid you will have to make us a big book instead of a little one, Uncle Roy, to teach us all these things.