Question

Migrating birds generally fly high up in the air. Why?
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Answer 1

Answer:

Birds fly at high altitudes to minimize energy expenditure for either their migratory flight or for scouring prey. Migratory birds utilize the thinner air at higher altitudes to cruise at a higher speed and with more ease. Eagles fly at higher altitudes to enhance their ability to survey and spot their prey.

Explanation:

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Answer 2

Birds fly at high altitudes to minimize energy expenditure for either their migratory flight or for scouring prey. Migratory birds utilize the thinner air at higher altitudes to cruise at a higher speed and with more ease. Eagles fly at higher altitudes to enhance their ability to survey and spot their prey.

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