Too right, I had a similar incident last year , one of the farm cats brought in a live rabbit for her kittens & the lads were trying to take it from her until I pointed out she probably had spent all night waiting to catch it, & if I saw them trying to take a live rat of her then they could do the same for the rabbit. I feed my cats but they are doing a job they certainly don't distinguish between cute & yuk, it's food!.
Nature in its rawest form!