Crested treeswift breeding season begins in SW China's Yunnan 

The breeding season for crested treeswifts recently began in Yingjiang county, Dehong Dai and Jingpo Autonomous Prefecture, southwest China's Yunnan Province.
The crested treeswift, which is under second-class protection in China, is a small, slender #bird with a long crest on its forehead. It builds a tiny, cup-shaped nest on a tree branch, which can only cradle a single egg. Both the male and the female take turns to incubate the egg. #nature #animals