Pollen, in the form of bee bread, is the honey bee's main source of protein and it also provides fats/lipids, minerals, and vitamins. The protein that pollen provides is vital to brood production and the development of young bees.
I noticed bees are more attracted to male cannabis plants. The pollen is a food source they bring back to hive. I also think the bees could potentially pollinate females in the area. Also ur bees look different than the ones I have seen locally.