Our oldest Indian runner, the rouen duckling and silver appleyard duckling are fraidy cats about being picked up.
The three younger Indian Runners for some reason are VERY tame and the black duckling doesnt even mind being picked up.
I dont know what to tell you, sometimes I think its luck of the draw because they are all treated the same. I do spend a ton of time with my birds but from what I have heard from other people, thats not supposed to make a difference?