vscampbell. I somewhat agree with that "no North American snake can eat an adult chicken,or even one that is a few weeks old...newly hatched chicks,yes." However, I have personally seen snakes (specifically yellow rat snakes, known as chicken snakes around here) kill 3-4 month old pullets in an attempt to eat them after constriction. They cant swallow them past the chickens' shoulders so they are regurgitated, they leave the carcass then off to the next one. Not only that, a 5 footer drug one of my full grown Buff Orpingtons hens off her perch in her house, out onto the ground into the pen and was attemping to constrict her in the middle of the night. Luckily I heard her screaming and went out with my flashlight and saw what was happening and quickly killed the snake. We have some pretty good sized snakes here; especially canebrake rattlers,eastern diamondback rattlers and cottonmouths that I know "could eat" an adult chicken. Again though, they prefer rodents/ fish or frogs in the cottonmouth's case rather than chickens and most likely would never happen. I would like to add I killed a corn snake several years ago after eating 4 of 6 chicks in their brooder in my garage. Since it's hot and humid here mostly from April thru towards the middle of October....snakes rule, rodents are hard to come by and chicks/chickens are next in line if the opportunity exists.