A little swift is seen flying over the OCT area recently. The OCT area has become the bird species’ largest urban habitat in Guangdong Province, according to bird watchers in Shenzhen. Little swifts have very short legs which they only use for clinging to vertical surfaces and they never voluntarily settle on the ground. Little swifts build their nests in holes in buildings or sometimes in cliff faces, living on the insects they catch while flying. SD-Agencies