6 August 2016.
Signed species:
American Goldeneye, Black-Necked Swan, Brazilian Teal, Bufflehead, Canvasback, Cape Teal, Chilean Teal, Chinese Merganser, Chinese Spot-Billed Duck, Cinnamon Teal, Common Eider, Common Shelduck, Falcated Duck, Ferruginous Duck, Freckled Duck, Gadwall, Green-Winged Teal, Hooded Merganser, Laysan Duck, Mandarin Duck, Marbled Teal, Masked Lapwing, North American Ruddy Duck, Northern Pintail, Northern Shoveler, Puna Teal, Red-Crested Pochard, Redhead Duck, Ringed Teal, Rosy-Billed Pochard, Smew, Southern Pochard, White-Backed Duck, White-Faced Whistling Duck, White-Headed Duck, Wood Duck.
I also saw Flying Steamer Duck and there are probably quite a few unsigned.
