Ah, I love birds.
The first couple (Eedie and Bree)... sounds like maybe Bree is getting the short end of the stick when it comes to protein. Is it possible Eedie is standing over Bree at feed time, muscling in on the high protein bits, and leaving poor old Bree to the lesser bits? Maybe try spreading feed wide, so they have an equal chance to feed on all available food sources...
That egg shrinking business has me scratching my head. How old is this girl? And is this her first lay? Am wondering if there is some vent problem, which may also explain her racket in the morning... You haven't been in after a few days of reduced eggs to find a massive egg, or a 'sticky laying box' have you? Like all yolky, but little or no shell? If there is no return to normal egg size, you might need to investigate further. You got some rubber gloves?
Bantams cluck all day. Mine fuss and carryon constantly... They are real chatty and heaps protective. They are like nattery old women. If your neighbours don't like the odd laying sound, I doubt they will appreciate a bantams fussy carryon just because a bird flies over head or a car pulls up.
Might be easier just to offer the whingey neighbours some eggs...
MMM - Yep, sounds like a moult to me! Those "quills" you see are the new feathers. They should soon open to reveal full feathers.
We have just had a day and a half of rain here. I am hopeful my girls will decide egg laying is a good idea again now.