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Answers will vary but a rooster or chicken sound can be used if bird songs are not known. Bird
songs are usually repetitive and can involve a call and response.
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Inside the bird’s body, muscles and ligaments move the wing up and down. Move your own arm
up and down and feel your muscles and ligaments.
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--
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The main body of the bird, the head and tail, pivot up and down around axles in the center. A
second set of levers moves along with the up and down motion of the tail: as the tail moves up
and down, the effort from that movement forces each wing to pivot around an axle. So, each
wing is a lever also.
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The tail can lift up to 90° and pivot down to -90° or 270°.
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Answers to this will vary. The motion sensor has been built into the model near the birds’ feet. The
Continue activity shows how to use it.
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