TVgeek, that reminds me of a story of some Argentinian soldiers on night watch (this is in The Unexplained, for anyway who wants to check it out). They watched a naked, pure black woman with arms whose digits extended into bat wings fly past silently, glowing slightly green.
Apparently this figure was seen hovering over a Los Angeles park on August 9, 2015. By a most fortuitous coincidence it was filmed by members of a local UFO research group who happened to be watching the skies at the time and had brought plenty of video and camera equipment along with them:
According to JerryB there were female flying entity cases in both Spain (which may be what James was thinking of) and Vietnam. (See here.) ... This link to a specific post is dead, and I'm unable to locate the post to which it pointed.
There's a new story making the rounds. It's ostensibly an account from a parent relating a sighting by a son 15 years ago. It involves a large "bird man" or "Mothman" seen in the sky over Auburn, Illinois.