We live in the country and have some feral cats that showed up so we have been feeding them. Two have become pregnant. We have a cat we believe is the father but we have never been able to get close to him. The female come up to our porch and hang out there and in our barn they are both very loveable and enjoy being petted. We have had many cats show up over the years at our farm but never had a Tom act like this. Both females are due any day now but the Tom will not let them out of his sight. He is always sitting in the yard no less than 20 feet from them and he keeps calling to them. What does this mean? They have always got along.