Too far overhead to identify, but definitely hawks and not vultures; a neighbor called and said, get out there and tell me what these look like to you. The magic of hawks migrating is, when you see a cluster like this they seem to be just milling about in big lazy circles; no raucous noises, no announcements. And even as you watch them, they disappear, in only a minute or two.
Anonymous posts will not be published, unless I know who is doing the posting: I know there are times when you can't access a site using your own name, and that's okay, I have trouble too. But there are too many dodgy posters out there who pretend to know a blogger, but you never see a name, only "anonymous".
Identify yourself in your post, and we'll all be fine. =)
If you need to contact me my email address is in my profile (that little box further down the page under "about me")