South central PA seems like the flow is over but mine are bringing in some nice honey. I think it is the clover and birdsfoot in my pastures because nothing else is blooming that I can see. I have a hay field that is full of clover and birdsfoot that should bloom in a few weeks plus some full season soybeans.
I am not holding my breath but I think I have a chance of getting some honey this year now that the 2 brood boxes are mostly full and nectar seems to be flowing into the hive. I put the honey flows on this weekend. Bees are exploring it already but too soon to see anything.
As to my original question, Sounds like the bees forage heavy whether there is something to bring back or not. Right now they all come out and head the same direction (my pasture) but I am guessing if there is no nectar flow the direction they go is more random?