We have only started keeping ducks in the last 6 months. As things happened we ended up with an adult pair of Indian Runners plus four ducklings. If you are thinking of taking on Indian Runners this has been our experience: *Unless closely hand raised, they can be quite timid, nervous and flighty. *They can take some time to bond with their pen, so keep them locked up in their run for a good while before attempting to let out to free range. *Keep a routine with the ducks. DO NOT change anything with their pen. The smallest thing out of place and your ducks will be too suspicious to come back into their pen at night! * If you do have to 'herd' your ducks for some reason (see above lol) you must be VERY patient, quiet and only make small, slow moves. We are still learning about our ducks but they are very entertaining and lay lovely eggs.