Can you tell what Breed and if this is a Standard or Bantam?

[Lobzi]

She wondered into a friend's yard who doesnt own or want chickens. My friend called me for assistance with the hen. I thought she might do ok with my flock but now Im wondering if she is a young standard size rather than a bantam. I have bantams and I took in a rescue roo that was standard sized and he has never done very well in the yard. I dont want to repeat the problems with this hen. Im also curious about the breed if anyone knows. I will probably offer her on a local forum and Id like to have some information before I do so I can include it in my post.
Thanks to you all for helping me.

 

[sourland]

She is a mature game hen.

 

[Lobzi]

I sort of figured so when I found an egg in her pen. Do you think she will get along with bantams? Im guessing Games are smaller variety?