The smallest bird in the grouse family, the white-tailed ptarmigan is also one of the few animals that lives on alpine mountaintops throughout its entire life. Every part of this ptarmigan is adapted ...

Additionally, populations have been introduced into high-alpine habitats outside the ptarmigan?s historical range, including in the Sierra Nevada in California, the Uinta Mountains in Utah, Pike?s ...

NAGANO--Efforts to revive endangered rock ptarmigan numbers here are making good progress following the discovery of five chicks in the wild that have flown the nest and are living independently ...