West Indian Whisting Dock.

The West Indian Whistling Duck is between 20 and 24 inches tall, and weighs about two and a half pounds.
Normally a night feeder, the West Indian Whistling Duck spends daylight hours roosting in mangroves, woodlands or swamps.At dusk they fly to their feeding grounds which are usually ponds surrounded by thick vegetation or seasonally flooded grasslands. The ducks are largely vegetarian, feeding on fruits and seeds of grasses and other plants. They also eat freshwater snails, however, and even develop a taste for tadpoles!