WHERE'D THEY ALL COME FROM?....and where'd they all go??

You'll never believe what we saw this morning. We were at the kitchen table having breakfast, watching the birds and the squirrels through our large kitchen windows, when I noticed a Blue Jay for the first time this year. Then another one flew in. First thing you know, they were flying in by twos, until I counted 16 feeding on the ground!!!! I ran and got my camera, but when I opened the back door--off they flew. They haven't come back. Guess next time, I'll have to settle for taking a picture through the window. I was hoping to share this sight with all of you. Oh well...