The breed is a combination of various breeds which has been kept secret. Mine sorta look like zombie chickens. So I think it really differs from hatchery to hatchery.
I have had to remove one of my roos for this. Then found out it was actually the other hens doing it! So i personally spray the hens with the bald spots with Durvet No Pickn. Then I switched the feed to
Kalmbach Full Plume Feathering Feed and within a month the feathers had grown back.
(1) Are you new to chickens / when did you first get chickens?
No/8 years old
(2) How many chickens do you have right now?
84
(3) What breeds do you have?
Barred Rock
lavender Wyandotte
Golden Laced Wyandotte
Sliver laced Wyandotte
Light Brahama
Americana
Blue rocks
Blue cuckoo marans
isa...