How do bees look like?

No, they are probably Bumble Bees or they could be wasps.

Digger bees (ground bees) will be different than honey bees...honey bees will be a colony consisting of one nest with thousands of bees...digger bees, may be a colony of dozens to hundreds, but it will be 1 nest to a bee, just many nests in the same area..do note, in arid areas honey bees are known to nest in the ground in old rodent burrows, but once again there will be many bees using the one nest

Lar