Just a simple question: What percentage of the hive in the summer time do you think comprises the field force? 20%? 40%?
Re: Field Force
The percentage of foragers in the field is pretty variable. Someone else hunted for similar information a year or so ago on thread: http://www.beesource.com/forums/arch...t-253538.html?
You might like to look at the scientific study "A Quantitative Model of Honey Bee Colony Population Dynamics" at http://www.plosone.org/article/info:...l.pone.0018491 They provide mathematical equations that might help you get the answer you seek.