In the winter, the birds become pure white and can only be seen by the "black of their eyes"! I'd love to see one in winter even though it probably involves freezing off parts of my body.
These Ptarmigans eat similar food to most other grouses including buds, stems, and seeds. In summer, they also eat insects, leaves, and fruits. They nest in a scrape on the ground and typically lay 2-8 eggs. The young leave the nest in 6-12 hours after hatching!
Bill Schmoker has some amazing photos of White-tailed Ptarmigans (and many other wonderful photos).
Hopefully, I'll be lucky enough to run into one of these little guys. Wish us luck!