They've been ambush hunters for thousands of years, so the position you're seeing is very commom. Gotta be ready whenever food wanders by, hungry or not, because they don't know when the next one may show up.
In time, you'll be able to recognize the difference between just chilling in that pose and the characteristic s-shaped neck that means they're ready and waiting in actual feed mode. Just keep your hands out during that time if you've been handling rodents.![]()