Washington, DC (AHN) - Washington, DC (AHN) - Washington, DC (AHN) - Washington, DC (AHN) - Washington, DC (AHN) - Washington, DC The occasion was sweet and bitter at the same time for BP, a panda who was born on August 22, 2015 from parents Mai Qiang and Tian Tian.

The pandas must be transferred from the United States to China under an agreement to transfer the descendants of the two pandas to China at the age of four.

The date of BP's transfer to China has not been officially set, but it is expected in the coming months, according to the National Park authorities. BP's elder sister Bao Bao was relocated to China in 2017. In the US National Park, giant pandas have been on loan from China since the 1970s.