CCTV network news: Spoon-billed sandpiper is a long-distance migratory bird, breeding period, migration period, wintering period are completed at a specific time and area, every year in August, September, October, they will travel a long way to Jiangsu Yancheng wetland to stop foraging and fattening, replenish energy.

It's not just their "big cafeteria", but also their "dressing room". Here, they complete the process of switching from reddish-brown feathers to winter feathers suitable for overwintering. After tens of thousands of kilometers of flight, the feathers of the "little spoon" are very badly worn, and they can migrate better after fattening and moulting here.
Source: CCTV