41. Pikas graze on a range of plants, mostly grasses, flowers and young stems.42. Many of the vocalizations and social behaviors that pikas exhibit are related to haypile defense. 43. North American pikas ( " asocial, leading solitary lives outside the breeding season. 44. They are frequently found near colonies of pikas ( " Ochotona " ). 45. Pikas rely on existing spaces in the talus for homes and do not dig burrows.46. Pikas select plants that have the higher caloric, protein, lipid and water content.47. Approximately 55 % of its home range is territory which the pika defends against intruders. 48. Wildlife watchers can see mountain goats, Rocky Mountain big horn sheep, and pika . 49. Should it be unblocked ? pika 22 : 58, 17 May 2007 ( UTC) 50. Pika 21 : 58, 27 June 2007
