Im not sure what it was, but it had to be small. I believe it sucked the blood out. I lost my BO. I only have 1 left of that breed. She was 5 months. I have a small hole in the door. Im in the seacoast of nh. What could it be? The body was just laying there with a few feathers around. NO blood. Body appeared to be slimy on a small area. They roost up high, but could have fallen down when scared.