A practitioner asks about a photo he sent: “This orb has been appearing in my backyard which is picked up by my ring doorbell camera. It has been there for several weeks, although at one time it did not appear for a few days. Do you have any idea what this may be?” What can we tell him?

This, in fact, is a guide who is watching over you and wanting to say "hello" and give you encouragement. It is always a good idea to ask for safety and protection. It will not be easy to discern differences among phenomena such as this, captured on a camera. All spirits are energy that looks similar when detected via such technologies, so orbs moving about can be angelic beings, they can be spirit guides, they can be dark spirits as well. In this case, you have a friend who is saying "hello," and this is nothing to be concerned about but rather rejoiced that you are quite blessed and can know it in this way. Most people have no one to help them understand unusual things that happen. In your case, you have a good friend in your compatriot at GetWisdom who always thinks highly of you and wishes you well, and is heartened also to hear these words via his channeling as he was naturally somewhat concerned that you not be in harm's way. So that is not the case, this is something to only feel good about.