Hens have gone quiet-advice/info please

Hi all,
I have 5 ex bats which I got about 7 weeks ago. All in all they are doing great, really flourishing but I noticed this morning that they were not very enthusiastic about their food (although they did eat it all) and they have been really calm when we have been outside to them-they normally run at us over excitedly.
This morning they have all been spending more time perching than normal too-both inside their coop, which they normally only go in at night time and on a big bush outside which they normally pay little or no attention to.
It sounds silly to worry that they look 'too relaxed' but thats the best was I can describe it.
The only other thing that may be worth noting is that they have been off lay for about 5 weeks and we wandered wether their behaviour is a sign of them getting ready to lay again or struggling to lay.
Anyway any ideas, information or advice would be really helpful.
Thanks in advance
Lisa

I know very little about ex-batts but others will be along how know lots.

Hens that are not laying do not need nearly as much food as laying hens do.

Give them a while i think that they have setteled in and are just taking life a bit easier now and who can blame them after the life that they had untill you came along.