130 
FINDING NATURE’S TREASURES 
“The swallows are building their nests underneath 
that overhanging rock,” continued Uncle Jack. “That is 
why they are called cliff swallows.” 
“Let's see if we can find the nests,” said Fred. They 
ran to the cliff. They saw the odd round nests made of 
mud with a hole on one side. The nests were high up 
and right under the rocks that stuck out like a roof. 
One of the nests was only half made. While they were 
looking, a swallow lit upon it. They could see the mud 
in the bird's mouth. The swallow put the mud on the 
edge of the wall which he was building, and then flew 
away. 
“Do the swallows make a bed inside of the nest?” 
asked Bess. “And what do the eggs look like?” 
“They usually make a bed of a few pieces of grass,” 
answered Uncle Jack. “And their little eggs are white, 
speckled with brown.” 
“Do all swallows build round nests with a hole in the 
side for a door, like these cliff swallows?” asked Fred. 
“No,” said Uncle Jack. “There are different kinds of 
swallows. Some of them make mud nests that are open 
at the top. One kind of swallow makes a hole in a bank, 
and builds its nest in the hole. They are called Bank 
Swallows.” 
