Just because I never posted the pictures I took on my original thread, here is my easter egger Dino in mid-July, when I first noticed the tail's crook. She looks very similar (but larger, at 7 months old) now.
I can say much the same about the Golden Comets she's with (that is, they look much...
I asked pretty much the same question some months ago but my chicks were only 11 weeks at the time (and the wry tail appeared to develop very suddenly). I didn't get a lot of response but @HennyPenny44 did report the same sudden onset in a 13-week-old cockerel.
I can say that my chick with the...