About 5 months ago I altered the method in which I keep my large colubrids and my aspidites.

All of my drymarchon, pituophis and rhamphiophis are kept in 6' and 4' cages respectively. I modified each cage by constructing a hide drawer (a CB70 tub) under each one encased in an open wooden frame. This drawer is accessed by a hole in the floor of the cool end of the cage.

Every dry and beaked snake is using those drawers to defecate and urinate in. Every one. The pits still crap all over their cages.

Two YTs a trio of BTs a pair of indigos, two rufous beakeds and two red beakeds. All 11 of those snakes are using their drawers as litter boxes.

For a comparison, I have five aspidites set up in a similar fashion and they go in the cage, in the drawer, in their hides, in their water bowls - you get the picture.

Two weeks ago, I got a third rubropunctatus. Just like the other two reds, he is using his drawer exclusively as a latrine. That's 12 for 12.

So it got me to wondering - given the opportunity, are these animals predisposed to not fouling their own nests? Has anyone else noticed this behavior in their snakes?