Mountain Quail
Oreortyx pictus
The bird's average length is 26–28 cm (10–11 in), with a wingspan of 35–40 cm (14–16 in). They have relatively short, rounded wings and long, featherless legs. These birds are easily recognized by their topknots, which are shorter in the female and change color with the seasons and geographic location of particular populations. They have a brown face, gray breast, brown back and primaries, and heavily white barred underside. Females display greater brown coloring on their dorsal side, a paler red on their undersides, and wider white barring on the flank than their male counterparts.
ID text from Wikipedia, CC BY-SA 4.0

Scaled Quail
Callipepla squamata
This bird is named for the scaly appearance of its breast and back feathers. Along with its scaly markings, the bird is easily identified by its white crest that resembles a tuft of cotton. It typically measures 25.4–30.5 cm (10.0–12.0 in) in length, 38 cm (15 in) in wingspan, and weighs 177–191 g (6.2–6.7 oz).
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
Learn this pair in the BeakBrain App
Photo and call practice. Coming soon to iPhone and Android.
Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Mountain Quail and Scaled Quail.