some hens are hard to get to sleep on the roost. Would I be concerned? Maybe. I'll explain. There are only 2 times my hens won't sleep on roost. 1 is they are broody. If your hens just started to lay today, it isn't that.yikes...I just want some help with my chickens... deep, sad sigh!!
Well...I'll ask here: should I be concerned that my hens want to sleep in the nest box? They just started laying, today, as a matter of fact. We had read that we must be vigilant to keep them from sleeping in the nest box so that they would know to lay there. Apparently, they know to lay there, but they were still sleeping there tonight. We lift them up, put them on a perch, but they just go right back to the nest box the next night....
The other time myhens won't roost is because they are sick. But don't get worried yet.
How old? Are these the 24 week old RIR's? Has it been a battle to get them to roost? Some hens need to be put up on roost for a while until they get the hang of it.
But ...if you are sure they aren't sick....personally I wouldn't worry. I have a splash Sumatra who at 1-1/2 years old just started roosting this week. She always slept in a nest box, and laid in a nest box.
hope this helps.