Tadorna cornuta, S. G. Gm.
956. :- T. vulpanser, Flem. :- Jerdon's Birds of India, Vol. II, p. 794; Murray's Vertebrate Zoology of Sind, p. 290; Game Birds of India, Vol. III, p. 135.
Length, 23.5 to 25.25; expanse, 41 to 46 ; wing, 12.5 to 13.6 ; tail, 4.75 to 5.5 ; tarsus, 2.1 to 2.3 ; bill from gape, 2.2 to 2.4 ; weight, 2 1/16 to 2 14/16
Length, 20.8 to 22; expanse, 39 to 42; wing, 11.75 to 12.4 ; tail, 4.2 to 4.9 ; tarsus, 1.95 to 2.07; bill from gape, 2.1 to 2.2 ; weight, 2 to 2 6/16 lbs.
Bill deep red ; nail dusky; irides brown ; legs and feet fleshy-pink to fleshy-red.
Male, head and upper part of neck deep blackish-green, with, glossy reflections ; lower part of the neck, back, and wing-coverts, rump, and base of the tail, white, the latter black tipped ; scapulars black ; primaries black ; greater-coverts, forming the speculum, rich bronzed-green, three or four of the secondaries next the black, with their outer webs, rich orange-brown ; lower plumage white ; a broad band of ferruginous-brown across the breast, the ends passing upwards and uniting between the shoulders ; a mesial line on the abdomen, widening at the vent, black ; under tail-coverts pale reddish-brown.
The male is rather brighter in color than the female, and during the breeding season acquires a large fleshy knob at the base of the upper mandible.
The Shieldrake, within our limits, has only been recorded from Sind, where it occurs as a cold weather visitant. It affects the sea coast principally, but is occasionally found on the larger, lakes.