Could you bribe them with some treats? Sprinkle some grubs or another high value treat on the inside of the littles' run right next to the cage wall then sprinkle some more right on the other side of the cage wall in the big run. That might get everyone eating with their heads down together. The act of eating together like that seems to trigger "we are a flock" thoughts in chicken minds. It also associates the "others" with a yummy treat instead of fear.
Note: I've only tried this with adult hens but it's been effective. Sometimes there was a little posturing or stink eye in the beginning but the desire for the yummy stuff quickly overrode the animosity.
Note: I've only tried this with adult hens but it's been effective. Sometimes there was a little posturing or stink eye in the beginning but the desire for the yummy stuff quickly overrode the animosity.
