Several years ago I decided to get close to the small birds at the back yard feeder and try to get some really good close up shots when they were on the ground. Dressed up in total camo, pants, shirt, hat and even a light weight face mask. Worked my way up a slight rise and was laying flat on my stomach with just my head and camera above the edge of the flat ground. Suddenly heard a sort of whistling sound and all the birds flushed all at once. Unfortunately it happened so fast I didn't get to snap a photo. In the next split second a big hawk hit the ground not but about two feet in front of my head and bounced up in the air after missing his prey. Again all this was too fast and startling to get a photo. At that point I was just thanking my lucky stars that the hawk didn't take a fancy to any of my bodily parts, especially my head even with the hat on.