Lazy Hens

Hi,
Just recently the last 3 or four months my hens have become ridiculously lazy. I am not sure if they are getting older or what, but they sit under my glass door on my porch preening for hours, and they only scratch for I'd say about 1 hour a day. They hardly ever take dust baths and a few have stopped laying completely. Sometimes they don't even preen, but just sit and stare glumly in the window at me for hours on end. Only 1 hen is laying 1 egg per day, and, my once frisky young pullets are starting to copy their bad example. Not to mention they make a total mess of my porch. They are even staring at me through the glass as I am writing. The older hens are about 4 years old, and my 2 pullets are about 22/23 weeks old. I feed them all Purina Flock Raiser, put Apple Cider Vinegar in their water, and give them fresh feed and water when needed.... I can't think of what could be wrong. Their coop and nest boxes/sleeping areas stay pretty clean on a daily basis. They are free range almost the whole day.

Somebody tell me what is wrong, please!

Thank you!!

farmgirl

 

Thanks! They have been trained before to come up to the porch for treats or if they want something, as well as run like mad up to me if they hear the door slam......... no wonder they keep sitting on the porch all day... they are not going to be too happy, but no treats for a long while!