Just my opinion: it has the characteristics of both valley and gambel's quail. The body is like that of a valley hen but the plume is like that of a gambel's hen. Gambel's hen plumes are long like your birds; valley hen's plumes are only about half that length. In regards to the body, the darker brown coloring on the sides (the side feathers covering the wings) is like that of a valley hen (or maybe it's the lighting that makes it look dull); gambel's quail (both males and females) have a rusty red coloring on the side feathers. If you can, show us the chest feathers of your hens? If it has scale-like patterns on the chest, it's a valley; if the chest is more or less solid colored (yellow/tan), then it's a gambel's hen.