I'm pretty sure the greenish stuff is maple pollen of some kind. We have maples close by and they're blooming now.
The orange pollen could be daffodil.
These guys are loaded. Sometimes there's quite a traffic jam at the entrance.
More of that orange pollen.
Three bees with the maple pollen.
All of this pollen is very good news. It means there's brood in the boxes. Brood means a good queen and a build up of new bees, which means more bees later and more honey.
No drones yet. The first brood of the year is females - to build up the hive for the season. Later they'll raise drones. Our plan is to split this hive as soon as we see drones.