There is this female stray cat that lives in the backyard of my new home. I'm not sure what to do with her at this time. (If the 3Ms like her, then I may let her stay, but if they don't like her, then I'll take her to the shelter) - so I don't want to invest in cat food just yet. Can I give her dog food?. I don't want to make her sick, or anything. The cat doesn't belong to anyone in the neighborhood, but she is very sweet. She lets me pick her up and carries her around, and always come up to rub her head against me when she sees me.