My ducks took to my younger ones quickly the same day. The lil ones treated the big ones like mama ducks. That said they were all young ducklings just 2 were juvenile and 2 were babies, so maybe a month or so apart. I'm pretty sure all are hens. A picture of the ducks at the time of introductions.
They are young hens that haven't started laying just yet. The other ducks are Ancona for reference. I got them as ducklings this Spring around April. Are they standard or Jumbo mostly just wondering. So far no issues with their health.