My female Siberian Forest Cat (2yo) has been meowing very loudly (any time, day or night), like she's calling out to someone. We've noticed that most of the time she's doing this, she has a toy w/ her, sometimes in her mouth, sometimes in front of her. The toy is a long, snake-like soft piece of fabric that used to be attached to a stick to wave around. My husband thinks she maybe thinks it's a snake she caught and is calling us to show us??? I always go to find her when she meows like this, because the meow is so loud, I worry she's caught or trapped somewhere. (of course it's always the case she's find and just standing there w/ the toy, but I can't not check on her when she's calling out like that). Any thoughts??