This is a ????????

I think it's an immature rufous-morph red-tailed hawk but not sure. He's very thin, about a pound and a half, at least a half pound lighter than he should be. I say he but don't know if it's a male or female. Perhaps because of the size it is a female. There doesn't seem to be anything wrong but the starvation so he got fluids and mouse pieces this evening when I arrived back from gathering him about 17 miles up the Southfork Road near Cody. I'll let you know what I find out.