Made from a bark-covered log, 8
inches long and 8 inches in diameter, a hole 5 inches in diameter "being
bored from end to end, leaving an outer wall 1 1/2 inches thick."--From
"Bird-Lore" by permission of The Macmillan Company.]
FEATHERED TRAVELERS.
Some birds are great travelers. They may pass the summer in the Arctic
regions and in the autumn go to Patagonia to spend the winter. Is it not
wonderful how they can make this long journey without a compass or map
to guide them?
Generally they follow rivers or coast lines; but they may have to cross
large bodies of water where no land can be seen Still they find their
way to and fro, returning each year to the same place Sometimes they
even use the nest they built the year before.
Large birds and those which can fly swiftly, like swallows, are not
afraid to travel by day. But the little birds, like wrens and warblers,
that live in the shelter of trees and bushes, wait for the night.
They are not afraid of the dark. It hides them from their enemies. So
when the sun has gone down and night comes, they fly up into the air and
start on their journey.
If you should look through a telescope at the moon some clear night in
spring or autumn, you could probably see the birds flying by.
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