Zhalong nature reserve is located in China more than 30 km southeast of qiqihaer city in heilongjiang province, is the world`s largest reed wetland, is also the hometown of red-crowned cranes. Red-crowned cranes are endangered birds, the world is now less than two thousand only. To zhalong can see red-crowned cranes are graceful posture, they spread your wings and fly, or staggered foraging in the reeds, every year tourists from all over the world here to watch the beautiful scenery.