Photo taken on June 23, 2016 shows a pigeon pair of panda cubs at Chengdu Research Base of Giant Panda Breeding in Chengdu, capital of southwest China's Sichuan Province, June 23, 2016. A female panda called Xingya gave birth to the first pigeon pair this year on Thursday in southwest China's Sichuan Province, the Chengdu Research Base of Giant Panda Breeding said on Thursday. Xingya gave birth to a male cub weighing 170 grams at 1:17 p.m. and a female cub weighing 161 grams at 1:30 p.m. (Xinhua)