Spring is in the air.
My big snakes got that way last spring - when food was being defrosted, and the smell was in the air, they'd test strike at anything flesh colored just in case it *was* food. Irritating bites too, since their saliva was flowing.

Ziva 's response calmed down after a few weeks. Abby's remained strong until she started laying jellies.
Other times of the year they'll check food out and take it gently, but when the feeding response is in overdrive, everything os fair game.