Bees getting ready for the winter

It is sunny today and the ladies are flying in search for pollen and nectar. 4 of the hives are full with stores and the other 6 hives are getting there very soon.

 The bees have found a new pollen source which is olive-mustard color.

There is lots of ti coming in but I'm not sure what it is?

I have spotted a very black worker bee. Probably a very old forager since it has no hairs left on her body.