I let them out a bit ago. Its sunny and 75 out (of course I'm working though). I was sitting in a lawn chair while they were all pecking around the lawn. And a giant shadow crossed over me! Took me a minute to find it, but it was in a pair of black vultures. So, back in the run they went.
My son did a report on them in second grade (and he was extremely thorough

). I had learned that unlike turkey vultures, black vultures WILL eat an animal while it's alive. Nothing that can fight back of course, they are smart.
Found this disgusting and disturbing article on them:
https://apnews.com/article/e79711967910490db3368c1339545e47