Quote Originally Posted by bcr229 View Post
This. I've noticed that my older adults (> 4 years) slow down a bit over the winter. I don't bromate them but they still are aware of the seasonal changes. They more than make up for their mini-fasts in the spring though.

Bear in mind that most colubrids in captivity are overfed, which can lead to an early death due to obesity issues like fatty liver disease. Kings, corn/rat snakes, milk snakes, etc. should retain a more square than round body shape.
Mine have never fasted, per say, but they do seem a bit less food aggressive in the winter.

And you are right about these guys being prone to obesity, my first king had to be put on a diet because the previous owner was feeding her small rats once a week. Lol