I feel that there are so many different energies and beings, that can appear as they want to. This could be a being of the cloud merkaba that decided to come into this formation, or perhaps an angel.
I feel angels don't actually have wings but that they can control the way that they are perceived and may come to look like an "angel" for the sake of the human and what is comfortable and makes the human receptive.
This could have been a way of bringing faith to people or helping to raise the vibrations. maybe a way to make more people receptive to them so communication is more successful.
The idea of angels raises vibrations in people and sets them at a particular frequency that would perhaps make it easier for an angel to come and communicate.
Some ideas heehee