You have a nice assortment of breeds & ages... your tribe has more choices to hang out by personality/temperament/age compatibility, rather than as small flocks do where alikes seem to pair off.
Here, Silkie paired w/ Silkie, Dominique w/ Dominique, etc... but as a pair would lose an alike...
Maybe they assume you are rewarding their squawking when you gave them food. If squawking is rewarded w/ treats, they squawk more often & louder. We figured that out w/ our birds. Sometimes squawking is so violent that we check for hawks or feral cats or even a bigger predator just to make...
Heritage Blue hen
Heritage Brown hen
Lohmann Brown hen
These two companies have the pasture raised & colored eggs farms in the USA sold in our area.
https://happyegg.com/our-farms
https://vitalfarms.com/true-blues/
Probably specific blue-egg layer EE's... very plentiful breed here in feed stores & some hatcheries brag they have bred their EE's to lay definitely blue eggs. The brown eggs are Copper Marans chocolate egg hybrids. All production breeds are hybrids here. The colored eggs are popular grocery...
Yes, a breed characteristic... they are basically quiet flockmates but will run to their human to talk, get petted, our Dana would hop into my DH's lap for attention.
Use different color nail polish on their rear toenails... blue, red, black, green, yellow, etc, to tell them apart. Might be good to know in future in case of needing meds for one of them. W/ our Dominiques, they all had different rosecomb shapes so they were easy for me. But your Noirans girls...
Move to Hawaii... chickens seem to thrive there... even thru hurricanes ❣️ DD/SIL said you see them loose everywhere... even on the beaches.
https://ownyardlife.com/5-types-of-feral-chickens-in-hawaii-pictures-and-identification/
Non-prescription topical, greaseless, no odor, pain-free joints cream (USA). Though nothing short of Morphine takes away all pain, this cream can reduce discomfort 50-75% or more. Whatever the ingredients, it works ~ even just a bit LESS pain is worth this stuff ~ menthol products were a waste...
DH does the shopping & knows a good bargain when he sees it. He reads labels/sources, does comparison shopping/research, checks expiration dates. In other words... he's cheap!