As temperature rises, Dzongyab Lukhang Park becomes bustling with many kinds of migratory birds, like bar-headed geese, tadorna ferruginea, black-headed gulls, etc. 

These birds happily chase after each other and search for food without worrying the slippery icy lake. 

These highly alert birds are leisurely swimming in the lake regardless of crowds at the bank as well as their lens, which perfectly demonstrates the harmony between human and nature. (Photo/Zhao Yao)