Our chicks are four weeks old and today my dear hubby built them a “nursery” alongside where our big girls are. Though none of the big girls has come close yet, they are vocalizing like mad! Is this normal? They know somethings up as we’ve been working in their coop all day (they have part of a shed). And obviously they heard the chicks chirping once I put the littles in their new area. Pics attached of the new area before and after the chicks were added.