Many varieties of birds needs to migrate.
Give suitable reason
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1
Explanation:
Food may be the key to a regular migration, but birds migrate for other reasons related to helping their offspring survive, including: Climate: Birds have evolved different types of plumage to survive different climates, and changes in those climates can affect migration.
Answered by
0
Answer:
the reason is favourable climate and favourable conditions..
eg. Siberian crane
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