Really? I thought everyone had heard of them. You might also want to google 'Nordic extraterrestrials'. Many times when people are abducted they not only report seeing the greys and their overlords, the dracos (reptilians), but they have reported seeing what looked like humans, only a lot taller. Like 6 or 7 feet.
Had a look at the UFO photos and it looks something that we could make, I have a feeling some UFO phenomena and alien evidence could be black op projects. Opinions?