Again - I know this isn't the norm, however, it is past the breeding season, and they are becoming migratory, so the are sharing without squawking as much! During the Spring, when they are first arriving or heading north for breeding, they are very territorial. I have gone out and had to threaten to bat them with a fly swatter if they don't share! Not really, they pretty much take care of themselves. When you are feeding hundreds of birds a day, we don't have to monitor, they do a pretty good job of that themselves!
I hope you enjoy one of our pastimes.