I left some sunflower seeds out today and I saw the said bird family again. They seem to be taking a couple of precautions from yesterday's debaucle. For example, the juvenile is taking her breakfast in the nearby bushes so if a fight breaks out, she won't be watching it directly. As for the appearing blue jays, it seems the parents won't let eat without giving them a beat down. Granted, the jays are still able to attain some of the seeds, but I think the cardinals are trying to make their eating more of a hollow victory. Well, other than a pesky chipmunk and a little broomwork, that is the most activity that's been happening in my front yard.
PS: My family sampled some Indian sweets today.