Huisdieren
It is very unlikely that a cat would bring crickets to her kittens. Here is why:
If you are seeing a cat bringing something to its kittens, it is much more likely to be a small mouse, bird, or even a toy. It is a natural instinct for mother cats to teach their kittens how to hunt and eat.
If you are concerned about your cat or kittens, it is best to consult with a veterinarian.