AZDiamondHeat,
Expect the nuisance bobcat problem at your house to resolve itself within the next 3-4 weeks and here is why. Mama will be wanting to leave the den very badly when the bobcat kittens are able to follow her. Mama and her kittens will not come back to the den when they leave the den for the first time. The kittens will then follow mama as she shows them around her home range. If you call AZ Game and Fish, they will tell you the same thing or have you contact a nuisance wildlife removal business that will charge you to have them removed. The best option is to be patient and let the bobcats leave the den then cover the entrance. Otherwise, you might have a bobcat denning there next year. That may not be good if they are denning in the crawl space in the attic of your home. In the meantime, mama will be getting more protective if the den is approached. You might need to force mama to back down if she is blocking access to areas around your home. The easiest way to do that is get a spray bottle or squirt gun and fill it with ammonia. Spray the ammonia at mama and she will go the other way. Remember, your nuisance bobcat problem is temporary and will stop abruptly very soon when the kittens leave the den with mama for the first time. Hope this helps.