I have a pre built MPC henhouse, its worked great for the last three years. Until now, it seems that a crow has learned what the chicken egg laying song means and is going in the hen house and getting my eggs. I have 8 hens in this area, four lay in the morning and two late morning and two that lay between 4-6pm. So I can't really "lock" them in or out, and they all lay IN the nest boxes inside. Ive put lots and lots of shavings in the nest boxes and made a little "lip" type thing so they can't kick it out hoping to hide the eggs from the crow......thats not working.........any ideas other than me standing out there with my 9mm. I have two elderly parents that I have to go take care of each day along with having a son in school that I drive to and from twice a day due to the whacky school hours, so I really am not "free" all day to sit and wait for the *******.