Bees are flying

Today here in Southwest Missouri it's 60degrees or better.

It's miserable for gathering maple sap, but the bees sure are enjoying the warmth.

I see many different shades of pollen being brought in on both of our warré hives.

Is it safe to assume that with the pollen they're gathering at least a little bit of nectar, too?

If they are gathering pollen then most likely they are trying to rear brood. If the weather turns cold again all that extra brood is going to eat into honey reserves. I would guess that nectar is going to be rare right now. You should weigh the hive and make sure you have enough stores to see out the winter. If not you might have to feed to see them through.