Fulvous Whistling Duck

Fulvous Whistling Duck
Fulvous Whistling Ducks (depicted to far right) represent one of the most challenging species to collect in North America.

Fulvous Whistling Duck (Dendrocygna bicolor) is described as having goose-like posture due to their unusually long necks and legs. Drakes and hens are monomorphic (virtually identical) with grey-blue bills, legs and eye-rings. Overall rich chocolate-colored plumage covering back, rear, tail. with white uppertail coverts patch separating rear and tail. Tawney-buckskin colored belly and nape blending stripe-like into the chocolate back portions.  Striking, elongated, buff-colored flank feathers forming intermittent streaks on the side pockets. Fulvous whistling duck wings covert is rich cinnamon, the remainder is black. Dark feather line running down the crown to the neck is only continuous on females. Throats striated gray and white. They’re extremely vocal while feeding and in flight, making high-pitched k-weeooo and kees.

Fulvous whistling ducks have incredible 4-continent distribution, but only one subspecies is recognized worldwide. In North America, some fulvous whistlers will remain in the same area year-round along the coasts of Mexico and Florida. Those that do migrate for the breeding season are found mostly in Texas and Louisiana, with a few supposedly found in southern California. This species readily reacts to change in water levels and will also often migrate well beyond their normal range to find suitable habitat. Pairs of this species, unlike other dabblers, mate for life, sharing the responsibilities of rearing the ducklings.