The isabels all have nice feathering. Some of the splits are nothing but fuzz.
I'm hoping to reunite YB (yolk butt) with the rest soon. He preened and has a fluffy bottom now, which helps hide any bits.
Interesting -- about the feathering. The three I pictured above had pretty raggedy looking feathers a couple of days ago - and I wondered if it was that lavender dilution can make the feathers degraded stuff going on -- Now today they looked pretty good. If you check under the chins of the male and the one female, they look scruffy -- but I don't know if that is because of the way they were drinking and eating out of the cage cups -- or some feather growing in. --
Your observation makes me wonder if something about that legbar's feathering gene is more slow-growing.