Sometimes motion, but sometimes not?

The motion on my doorbell is sometimes working. It’s picking up gardeners 10+ form my house when they are out mowing the grass & even picks up my neighbor kids walking by 20+ away. But it’s not activating when somebody (a delivery man) is walking up to deliver something, only turning on the camera if they ring the ring bell.

Any ideas on what could be happening?

Hi @Celie4512. If your Ring Doorbell is picking up motion inconsistently, it may be due to how it is mounted. We recommend mounting it at a height of 48 inches from the ground, and a wedge kit (if needed) for the correct angle. This Help Center article here shows the optimal mounting for the Doorbell. I hope this information helps!