Most field beans will have flowered and moved on to seed pod development by now, surely?
It is a well observed that the outer stretches of large bean fields yield heavier crops than the centre regions due to insect pollination. My bees certainly get moved to the beans after the OSR, if possible.
The beans are of course now past the flowering point.
The point I was making is that my hives have been "on the beans" as in some 50 yards from a large field and have produced nothing. Nor did I expect them to do so as beans are not a crop bees really benefit from though I did once hear a story that a crop of honey dew was achieved off beans.
Hmm ... I beg to differ on the field bean front....
I've had a good year when the bees managed to get quite a lot of field bean honey and it tasted like the field bean fragrance. Very "perfumy" and delicate. Blended with rape it was very nice, or so everyone told me.
This year I could see the bees working the field beans for nectar on two separate fields, although I am not expecting a good yeld from it as there was too much spring sown rape and charlock about. I understand that field beans like limes and hawthorn are fussy plants and don't give good yields frequently.