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Rescue helicopter hovered over the mountains in winter
A cougar helicopter flies over numerous rocks
Yellow rescue helicopter in Canada
Helicopter blades in macro photography are impressive
Helicopter at sunset in Los Angeles
Several helicopters are parked at sunset
Ronald Reagan Military Helicopter
Sikorsky military helicopter in the sky
A helicopter takes off at the airfield against the background of a mountain
Apache helicopter gunship amid clouds of black smoke
Apache helicopter performs the task
Russian helicopters on the background of sunset