Based on her color, I'd guess she is wheaten-based (or wild-type, but wheaton would be my best guess.) Both wheaten and wild-type are sexually dimorphic. The males would definitely be getting dark breast feathers in by now.Thanks - I’m really hoping someone can help identify this one. Really hoping we didn’t rescue a rooster since we can’t have roosters where we live.
https://kippenjungle.nl/chickengenetics/mutations1.html