My 4 x Isa Brown pullet's started laying 3 weeks ago, until recently I have been getting 4 eggs daily, on Sunday I only got 3 eggs & on looking at the pullets I noticed one was all fluffed up and looking very disinterested in everything. Whilst the other 3 pullets were out scratching about in the field it just stayed next to the feeder, thinking this unusual behaviour I examined it thinking it may be egg bound but nothing was seen, I have since gave the pullet a bath in warm water for 30m and gave it cod liver oil orally however still no change. I now have separated it from the others and put it in a warm stable to confirm it is the pullet that isn't laying but it does seem perky enough, it is managing to get into the rafters of the stable to roost and is taking feed and water. Has anyone got any ideas what is wrong at the moment I am just going to let nature take its course and hope for the best. I would be obliged if anyone has any solutions. Thanks. ps I live in the West Coast of Scotland where the weather has been particularly cold recently if this has any bearing on the pullet's behaviour.