Re: How could you not notice?
Actually, you'd be surprised. If the bees aren't interested in your garden[0], they will exit their hive and make a bee-line (to coin a phrase) for their preferred source of pollen and nectar. You might not notice them at all if their doorway is above eye-level in a corner of the house that you rarely look at. Up under the eves is common ... One pencil sized hole on your soffit vent screen is all it takes.
[0] Many garden flowers have been bred to be pretty to humans, not bees.
Biting the hand that feeds IT
