Good ? Adrian!!Only can answer from what I have seen and I do believe that there are years that not only jennies but hens in general do not breed and nest!On countless occasions I have seen not neccassarily one hen but usually 2 to 3 hens that hang together an entire season and often times never even have a gobbler amongst them!Usually they seem to avoid contact with other birds unless they are using the same feeding,roosting,or watering sites!The factors for this behaviour are somewhat baffling to me after spending countless hours in the turkey woods!I do agree with Wack' s quote from Lovett Williams but I also belive other factors attribute to successful breeding and nesting situations!Such as,weather,food sources,habitat,and even predators(including hunters) ,have alot to do with a hens receptiveness or not!I also belive within all of this pecking order amongst the hens themselves has alot to do with whether they get bred or not!Obviously older more dominant hens will step up to the plate first and on down the line it goes!If one of these factors listed above causes them to get behind when that 30 or 40 day window is slipping by during the spring breeding season they may miss it all together and there' s no question that as a gobbler peaks out and that desire starts to slip it also has to be with the hens. It may not be entirely all about the hens but the gobblers also!I' ve seen those same type of gobblers that act uninterested too and then there' s those sattelite birds that strut there ass off and thats about all they do!In areas with large populations of birds a boss gobbler has an incredible amount of work to do in the spring and when you add in all these factors plus the fact he has to defend his territory, its no wonder not all hens get lucky!