Question

what changes happen to a birds body before it migrate ​

Answer 1

Explanation:

The most common dangerous obstacles include tall glass buildings, electrical wires and poles, wind turbines, and similar structures. Predators: Predators kill hundreds of thousands of birds each year, and during migration, migrating birds may be unaware of local predators at stopovers during their journey.

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Answer 2

Answer:

hy dude ur answer is

Explanation:

The most common dangerous obstacles include tall glass buildings, electrical wires and poles, wind turbines, and similar structures. Predators: Predators kill hundreds of thousands of birds each year, and during migration, migrating birds may be unaware of local predators at stopovers during their journey.

hope it helps!!