The crows are good alarm systems that will beat any man made form when it comes to protection of our boys. They will make a racket when four legged wildlife is passing through, such as the bobcats, coyotes, and sometimes raccoons. They are even better at attracting our attention if the preditor is airbourne, such as the eagles, hawks, owls, and other raptors that may be resident, or pass through the area.
The crow at left is a special treat for us. There is a family of white marked crows, and this one is the most interesting of designs.