Question

1) What 'migration' Means
2) Why are fewer birds migrating to bird sanctuaries in and near cities nowadays?​

Answer 1

Answer:

Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Birds that nest in the Northern Hemisphere tend to migrate northward in the spring to take advantage of burgeoning insect populations, budding plants and an abundance of nesting locations

Explanation:

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Answer 2

1)) Migration is when humans/animals move to a different area. For better lifestyle or to escape the weather .

2)) (um what? i dont get the question so, try relying on someone else)