Sparrows and mourning doves alike found perch on the frame of our neighbor's canopy...but all of a sudden they all flew off together. I looked out and there wasn't a bird in sight..even the squirrels disappeared. I showed've know.. some time later I was just walking towards my computer desk again when I saw a hawk sitting on the deck railing.. but before I could grab the camera - which is always right there on the desk - he flew away. that is now the 2nd time I didn't get a shot. hopefully I'll get him next time..