the species’ range distribution is broken into several condensed areas. Their homes have a range of about 30 m in diameter with caches and dens distancing from 30 to 70 m. The way organisms respond to climate change can be a distinct and peculiar characteristic, so patterns between closely related species, such as the collared pika and the American pika, are important. Collared pikas, like most other pikas, choose to live around rock slides to use the rocks as protection against the high temperatures they must endure throughout the day; they are referred to as cold-adapted lagomorphs. Behavior Collared pikas are diurnal herbivores and spend time foraging through vegetation during the summer. This species is known as an ecotone species for the way that it keeps its shelter and food storage separate from each other. This process of gathering and foraging for vegetation to add to their caches is referred to as “haying”, which is what they spend most of the day doing. They spend no time burrowing because they use their talus sites for protection and habitation. They are most active during the morning and late afternoon. Each individual within this species preserves its own territory and its own vegetation cache or haypile, and defends it with full force. Therefore, the collared pika is seen as an asocial species and prefers solitude. During the cold winters, the collared pika does not hibernate, but instead stays active, counting on its food sources for energy and survival, and uses the snowpack as a means of insulation. The distance in which the collared pika ventures out to forage is highly dependent on level of predation risk. When gathering food, pika rarely travels more than 10 m away from its talus site. Gathering begins to take place around the end of June or beginning of July and increases at a constant rate as time progresses. Collared pikas tend to have multiple haystacks of vegetation throughout their home range and often dwell in the same site annually. However, although it has multiple haystacks, it mainly focuses on one while the others are much smaller and localized caches. As observed, collared pikas are likely to use whatever is near the rockslides, such as leaves, flowering plants, berries, or anything else they can find to add to their food caches; even feces of other animals have been found within the haystacks of collared pikas. The food