I really hope she is a cuckoo maran!!! I can't find anything else that fits. With the barring showing up on the wings, it's definintely not a black sex link rooster.
Now your bird looks to have brown legs in the one photo and kinda light / white in the other. Pick up the bird and post what color its legs are please
Now justusnaks bird is a barred rock hen 100% sure of that. Them birght yellow legs give it away.
As per your request: here is one set of feet.
And a set of feet from my other dominique.
To me they look the same color as justusnaks birds feet.
And as an extra bonus, here is a face. We bought these as Dominique hens, if you know different, let me know lively Bee's
I'm assuming you had seen pics of my chicks in another thread, if you wern't addressing me about posting pics, I apologise for the interuption but offer the pics for comparison anyway
I was just looking at crazy critters (Maggies) responce to one of my other posts on the subject https://www.backyardchickens.com/forum/viewtopic.php?id=4543 and Justusnacks (Debs), birds comb looks more like the dominiques comb then the barred rocks comb.
At what age do they develope the distinctly rose VS single comb.
Yes I have too much time on my hands this time of day.