What two methods of identifying birds have been mentioned in this passage?
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Following are the methods mentioned to identify the birds:
Explanation:
- One method was to make some aluminum rings as per the size of the birds legs
- Then to put these rings around the legs of the birds
- When they are in the sky, the aluminum will shine and birds can be recognized .
- the other method mentioned was to use a particular color to paint the legs to identify them .
See a relevant question here:
Describe the two types of birds features
https://brainly.in/question/5761247
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some birds do migration
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