Fulica atra
Family: Rails, Gallinules, and Coots · Status: Very rare vagrant · Size: 40.5–42.5 cm · Conservation: Least Concern
Widespread across Europe, Asia and Australia; northern populations winter south to the Indian subcontinent and Southeast Asia.
Adult has overall slaty-black plumage and diagnostic all-white bill and frontal shield. Females are generally smaller than males. Juvenile has light-grey to greyish-brown plumage and whitish throat. Distinguished from Common Moorhen by bill colour: Common Moorhen has a red bill with yellow tip instead of a white bill.
Freshwater wetlands; recorded at Poyan Reservoir.
Usually seen swimming and patters along the water surface when disturbed.