One of my marek's infected chickens disappeared into thin air during the night. It was being separated in an old dog kennel. We were going to euthanize it the very next day, so it was kind of a blessing 
But seriously, the cage was still locked, food and shavings intact, no blood or feathers, dog kennel bars too thin and chicken to weak and paralyzed to escape....

But seriously, the cage was still locked, food and shavings intact, no blood or feathers, dog kennel bars too thin and chicken to weak and paralyzed to escape....