Just wondered if I should put little ones in pen during day, provide more hiding spots, or what? How long of bickering before I should be concerned? I have 3 feed stations, 2 watering stations.
Any photos of set up? If you have plenty of hiding spots that birds cannot be cornered in, that help break line of sight between each feeder, you're good.
Some fighting/arguing is normal and expected. As long as no blood is drawn and no bird is unable to eat due to bullying, I'd let them sort it out themselves.