The
arctic tern is the greatest bird traveler. It migrates farther than
any other bird.
The
arctic tern is a graceful black and white sea bird with a forked tail and long
wings. During the summer the arctic tern nests in the
arctic.
In
the fall it begins a long journey to the most southern parts of the world, the
Antarctic! And arctic tern’s round trip journey may e as long as 22,000
miles. Birds that travel are called “migrants”, and their journeys are
called “migrations.”
Scientists
learn how far birds travel when they migrate through bird
banding. The birds are captured in a trap and aluminum bands are
fastened around their legs. Then they are released unharmed.
When
caught again at a different place, code numbers on the bands show how far they
have traveled from the place where they were banded. In this way the route
of the arctic tern was discovered. - Dick Rogers
No comments:
Post a Comment