She's looking very golden wyandotte like, but with muddy lacing and the straight comb.... the lacing might clear up (they frequently go through an "ugly duckling" phase while the feathers are sprouting) and wyandottes do occasionally sport a straight comb. They tend to have a reduced fertility...
Brahmas don't have straight combs. They have pea combs. The face mask isn't quite right for a speckled sussex either, although thats not enough to rule them out. The challenge is that chipmunk markings are the most common (greatest numbers of breeds) down markings out there. The masking makes me...