What a Runner is
The Indian Runner is a light, upright duck that stands like a penguin and runs rather than waddles, which is where the name comes from [3]. The "Indian" part is a mistake that stuck: people believed the breed came from India, and importers later worked out it came from Southeast Asia [2]. Metzer lists the origin as Indonesia [1]. The Livestock Conservancy lists Runners as Recovering, meaning the breed was once on its more serious lists and has since passed the Watch threshold but is still monitored [4].
Size
Runners are the smallest of the three pilot breeds and sit in the light class [1]. Kentucky Extension gives hens as 3½ to 4 pounds and drakes as 4 to 4½ [3]. Metzer's breeders are slightly lighter, 3¼ to 4 pounds, and it does not split by sex, so we give the hen range as the span of both [1]. They eat less than a meat duck because of their size [3].
Eggs
Runners are the breed people reach for when they want eggs. Kentucky Extension calls Runners and Campbells excellent layers and compares the Runner to the Leghorn chicken, saying a Runner typically lays about four eggs a week for roughly eight months, and that some utility strains have laid over 300 in a year [3]. Metzer's figure is more modest, 100 to 180, and it says average laying has dropped because breeders have favoured colour, shape and stance [2]. The practical lesson is that a show-line Runner and a utility-line Runner are very different birds. Egg colour is mostly white, with a bluish tint more common in the darker varieties [3]. Metzer's numbers show it clearly: about 70 percent of Black, Blue and Silver birds lay bluish eggs, against only 35 percent of Fawn and white [1].
Temperament
Both sources call Runners nervous. Kentucky Extension says they scare easily, are flighty, and stampede when startled, though they are also very hardy [3]. Metzer adds that they stay together, so where one goes the rest follow [2]. Its scores vary by colour: Black 3.5, Blue 4.0, Chocolate 4.3, and Fawn and white 7.5 on a scale where 1 is very calm and 9 is nervous [1]. Among the colours Metzer scored, the darker ones come out calmer.
Foraging and quacking
Runners are strong foragers. They eat worms and slugs, and Kentucky Extension reports they have even been seen catching flies [3]. Metzer notes they were widely used as weeders and snail-eaters in fields [2]. Kentucky Extension also says only the females quack, and that drakes are limited to a hoarse whisper [3]. That is not the same as being quiet, since the hens still quack, so we have left the noise row blank.
Keeping them in
Runners cannot fly, so a fence keeps them in [3] [1]. Kentucky Extension also says they rarely form nests and drop their eggs wherever they happen to be, and suggests confining them overnight to make egg collection easier [3].
What we have not pinned down yet
Lifespan, a sourced noise rating and climate tolerance are not here yet because we do not have a source we trust.

