After several rain days, during this week, staff of the State-level nature reserve in the river and south are required to wear rings for the incubators of young birds in the field. After wearing good equipment, staff members plunged to a tiny approximately 18 metres from the ground. There are two young birds in the shell for one month. Staff members can easily bring young birds back to the ground. After a health check, such as weight, long plume, these rings with numbers, different colours an...