My corn is a little over 4 years old & is 5 feet long. I usually feed him about 5-8 large mice every 10-14 days or so. A few months ago a gave him his 1st rat (a large) and he ate it w/no problems at all. 2 or 3 weeks later, I offered him another large rat. After a couple of missed strikes at it, he began to completely ignore it, as if he wasnt interested. So I figured he probably wasn't hungry. 1 week later I offer him a small rat & he took it w/out hesitation. The other day I offered him a large rat, he refused it. Then I offer him a small rat which he also refused. Finally I offer him a mouse and accepted it. After eating the mouse I gave him hopper rat & he devoured that too. Has anybody else experienced something like this w/their corn or any other species of snakes before? & why all of a sudden would he not want small (or larger) rats anymore?

Any positive advice and/or comments would be appreciated. Thanks in advance....