Putting It All Together: How
Cranes Fly
To learn the general principles of bird flight, you may wish to start
with our
Bird
Flight Primer
Cranes
have large wings, a long neck, and long legs. They fly with their
legs stretched out behind and their neck stretched out ahead. Their
long,
wide wings allow them to fly using different kinds of flight techniques,
but because their wings are so long and wide, it takes a lot of energy
to
flap them — just like it's a lot of work running with a large kite
until it takes off!
When
cranes fly just a few miles or less, they use typical flapping flight. They usually flap with steady, fairly shallow beats until
they come in for a landing.
Then they use their legs and wings to slow down and ease their way
to the ground.
When
cranes fly long distances, especially on migration, they often
soar on thermals until they reach a great altitude. Then
they use a combination of gliding/soaring and
occational flapping to cover the longest distance using
the least amount of energy.
Try This! Flying
Cranes (and Contest)
This silhouette was drawn from a real crane. But can
it fly?
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See if
you can design a crane that can really fly, or at least glide. Use
cardboard, paper, paste or glue, paper clips, and any other materials
you
want to try. If you want a pattern designed from a real crane silhouette,
click on the small pattern to see a larger one. Or try to develop
your own pattern; use paper airplane designs or anything else
that might
work. Get together with other crane makers to test the birds. Which stay
aloft the longest? Which fly the farthest?
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