• Migrant birds return to NE China's Momoge National Nature Reserve

Migrant birds fly over the Momoge National Nature Reserve in Zhenlai County, northeast China's Jilin Province, April 12, 2017.

• Aerial view of Huanghuacheng Lakeside Great Wall Reserve in Beijing

Photo taken on April 10, 2017 shows aerial view of the Huanghuacheng Lakeside Great Wall Reserve in the suburban district of Huairou in Beijing, capital of China.

• Peach blossoms attract local residents in N China's Hohhot

People walk under peach blossoms at Gongzhufu Park in Hohhot, capital of north China's Inner Mongolia Autonomous Region, April 10, 2017. The peach blossoms here attracted many local residents recently.

• Tourists enjoy scenery of cole flowers on boats in east China's Jiangsu

Tourists enjoy the scenery of cole flowers on boats in Xinghua City of Taizhou, east China's Jiangsu Province, April 9, 2017.

• Aerial photos of old city of Tai'erzhuang in E China

• Chinese Bridge contest for college students held in Ghana

• Forestry experimental center home to protected trees

An aerial view of trees in the Subtropical Forestry Experimental Center, China Academy of Forestry, in Fenyi County, Xinyu City, East China’s Jiangxi Province, April 5, 2017. The center developed in 1979 covers 212.5 hectares and has 11 species of trees under first-class protection as well as 25 species under second-class protection.

• 5th Jinshanling Apricot Flower Festival kicks off in Chengde

The 2017 Apricot Flower Festival will last about four weeks and will include several events in addition to the grand opening ceremony. For example, 1,000 Tai Chi lovers will do Tai Chi on the Great Wall, 1,000 soon-to-be spouses will have a special wedding in accordance with Man ethnic group's customs and an international marathon competition will be held.