The first shot has no spots. The second does, but only where it looks like there is some kind of frame or window in the background. So, reflections are an obvious choice. There must have been more than two shots all day. What about the rest.
Photo is extremely over sharpened. Is this a result of your PP or can you see this in the original?? Could be a reflection from the sliding glass door in the background..
There are no unnatural spots in either photo. In second photo I see light coming through tree branches and a face with sunglasses below left wing of lower bird. Use the download and zoom in slightly to see branches with light (spots) coming through.
Out practicing bif's with new toy....D500 and found this. Hand held shooting from my vehicle. Any ideas what this is in shot 2?
A dictum in a policeman's shooting rule book, "Keep in mind what is behind your target, always." Same applies to photography. You have included a window that caused reflections.
Could be that the person behind window was wondering why you were "shooting" their house.