It is indeed true. We lost a fuzzy white Silkie today. She was 2 years old. I was gazing out at the coop, and noticed what I thought was a squirrel posted up in the rolled up tarp that covers one side of the coop during inclement weather.
I put on my glasses and saw immediately that is was a snake. I walked up carefully to the coop, and got several not so great pictures of a 5 foot long snake, that was most likely 3 inches in diameter. The sun was shining at such an angle on the coop, that I could not get a good shot of the snakes markings. It was wending it's way thru the chicken wires, and I thought for a moment that is was stuck.
I ran back into the building to get my binoculars so that I could keep a bead on the snake, without having to get too close. I wanted to see where it was going to go (my suspicion is that it is in the large live oak under which the coop sits.) The snake was already gone when I returned with binoculars,
When my associate, and owner of the building, arrived, I told her about the snake, and upon checking the coop she discovered the silkie strangled to death. I examined the neck of the chicken closely, and could see no puncture marks or blood. The feathers on the neck were plastered down with snake saliva...along the entire length of the neck,. It was very sad to witness.
We are in Dallas, Texas, and have all manner of snake variety here. I believe this snake was a Bull snake.