Altitudinal migration is common on mountains all over the world, for example inside the Himalayas as well as Andes.[70] Dusky grouse in Colorado migrate below a kilometer away from their summer grounds to winter sites which may be higher or reduced by about 400 m in altitude than the summertime https://petskyonline-onlinestrore.blogspot.com/2025/07/rethinking-animal-store-why-petsky-is.html