How long will my hen stay sit on unfertilized eggs?

[LovinMyHensInNC!]

I have a broody hen that has been sitting on unfertilized eggs for probably about a month now. I have been planning to put some chicks under her but all my attempts at getting chicks have failed. Our local feed store will be receiving chicks on the 18th (approx 7 weeks after she became broody)... is that too long to keep her sitting? Will she keep on sitting until something hatches out? How long until she gives up?

 

[sourland]

I would try to break her broodiness. Setting takes a lot out of a hen, and especially in this hot weather I would be cconcerned that she might die.

 

[AwallRooster]

If it was my call, I would discard all the egs that are a month old, and candle the rest, a well brood hen will sit as long as there are eggs to sit on.(you are a lucky lady to have such a broody hen)

after candling the eggs, I would keep her on the ones that are fertile, then you would'nt have to buy more chicks!!!

 

[Laurelm]

She'll probably take chicks if you put them under at night. As far as the eggs I'd be worried about them being rotten and exploding under her! That's a smelly mess. Maybe replace them ( again at night) and see if she says broody until you get your chicks.