The dented Air China plane in Chengdu, Southwest China's Sichuan province on June 4, 2013. [Photo/CFP]

An Air China flight was forced to return to the airport after being hit by a flying bird, leaving a huge dent in the front of the plane on Tuesday morning. Flight CA4307, departing from Chengdu, was en route to Guangzhou when the bird strike happened. Passengers were evacuated and put on another aircraft and arrived in Guangzhou safely.