“Indian Runners are an unusual breed of Anas platyrhynchos domesticus, the domestic duck. They stand erect like penguins and, rather than waddling, they run. The females usually lay about 150 – 200 eggs a year or more, depending whether they are from exhibition or utility strains. They were found on the Indonesian islands of Lombok, Java and Bali where they were ‘walked’ to market and sold as egg-layers or for meat. These ducks do not fly and only rarely form nests and incubate their own eggs. They run or walk, often dropping their eggs wherever they happen to be. Duck-breeders need to house their birds overnight or be vigilant in picking up the eggs to prevent them from being taken by other animals.
The ducks vary in weight between 1.4 and 2.3 kg (3-5 lbs). Their height (from crown to tail tip) ranges from 50 cm (20 inches) in small females to about 76 cm (30 inches) in the taller males. The eggs are often greenish-white in color, but these too vary. Drakes have a small curl on the tip of their tails, while hens have flat tails.
They often swim in ponds and streams, but they are likely to be preoccupied foraging in grassy meadows for worms, slugs, even catching flies. They appreciate open spaces but are happy in gardens from which they cannot fly and where they make much less noise than call ducks. Only females quack and drakes are limited to a hoarse whisper. Compared to big table ducks, they eat less grain and pellet supplements. When they are young, they eat rocks to form their gizzard which helps them digest their food. They do not have teeth, so they must have water to soften food.”