What Does a Flock of Birds Symbolize?

Okay, so now I'm beginning to see omens in the every day. The other night while driving home from my psychic class I saw a large flock of birds flying overhead. The imagination was suddenly engaged with possibility about what this could represent.

what images come to you from a flock of birds?

What metaphors can you draw from a flock of birds?  How do they relate to what is currently going on in your life? I'll tell you what I came up with tomorrow but today I invite you to tell me what speaks to you about a flock of birds. I may learn something from you that I hadn't considered and vice versa.