She's a lovely looking hen. What breed is she?
She is a rainbow dixie. I've heard it's a newer breed that is actually a mix of many things. She's one of the friendliest chickens I've ever owned.

There were a couple weeks at my house where some sort of predator got one chicken every few days. My white turkey went missing. My golden laced and silver laced wyandotte went missing. One of my easter egger mixes went missing, and a couple days later, another one of them did. My bronze turkey went missing. My ISA brown went missing. All within a few weeks after little to no predator issues. I noticed feathers of the brown one trailing into the cornfield the same day she went missing and tried to follow them and didn't find traces of any of the others, but did find feathers of a turkey I had before that went missing first. Since the turkeys were so large and I saw a couple paw prints, I figured it was likely a coyote. I stopped letting the chickens out for two days, and then after that, only let them out for a few hours (and tried to be outside during those hours a lot) per day. Now I'm still not letting them out as long as I used to, but I think the predator might have moved on.
I am not completely sure my "if I don't let them out, it will leave" system even worked and I'm sure later, as winter comes closer, more predators will come here looking for food and discover that my yard is basically a fast-food drive thru, and want to stick around. Unfortunately, more frequent losses are part of free-ranging. But I do think the chickens have a higher quality of life when they free-range. I've done it both ways, and I don't think I personally would ever want to keep mine in a coop/run 24/7 again. Besides, every time I've done that in the past, the end result is a predator somehow finds its way in eventually (sometimes years and years after never having predator issues) and then kills every single chicken inside because the chickens cannot escape the run. At least they have a chance to try and get away free-ranging and we only lose one or two per day otherwise... Just part of owning chickens I guess.