This is the only bird that can fly backward.
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Hummingbird
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Pigeon
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Owl
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Parrot
A
Correct answer
Explanation
Hummingbirds are the only birds capable of sustained backward flight. Their unique wing ball-and-socket joint allows them to rotate their wings nearly 180 degrees, enabling lift generation in both forward and backward directions. Other birds like pigeons, owls, and parrots can only fly forward.