Identifying my yard bumblebees continues with these very fast-moving and hard to photograph garden friends. I think this is Bombus vosnesenkii, the yellow-faced bumblebee.
The usual joke about bumblebees is that they meander slowly and bump into things. You know, bumble it up. But these seem to be what a peak performing bee physique looks like. Fast, precise, extensive pollination going on in my sage plant.