Fish&Game rescue, what the heck am I?

[RockerHen]

It's 100% chicken and a female.  Her coloring is silver duckwing.

She appears to be a mix of something 'hard feathered'- shorter feathers that also feel a little harder, at least compared to your standard big fluffy chicken.  Oriental breeds like shamo, asil, etc are examples of hard feather. Most hard feather also happen to have pea comb and no or almost no wattles, making them look even more different than the typical backyard chicken.

I wonder if your bird is a mix of a hard feather with a modern game because of the thin bones and long looking face (many orientals are heavy boned).  But it also could be a mix of oriental type with a 'regular' chicken or even with something like phoenix as the hard feather is mostly dominant over soft feather.  however oriental mixed with american game is a very good guess as that's a pretty common cross or mix.

She is likely to grow up into a 'tall looking' chicken, not so great layer but very broody and very very protective of her babies.

X2. I can definitely see a modern game/oriental cross.