quality:corruption, linguistic:translation
Social spacing and interactions

The cougar is a mostly solitary animal. Only mothers and kittens live in groups, with adults meeting rarely. While generally loners, cougars will reciprocally share kills and seem to organize themselves into small communities defined by the territories of dominant males. Cats within these areas socialize more frequently with each other than with outsiders.

In the vicinity of a cattle ranch in northern Mexico, cougars exhibited nocturnal activity that overlapped foremost with the activity of calves. In a nature reserve in central Mexico, the activity of cougars was crepuscular and nocturnal, overlapping largely with the activity of the nine-banded armadillo (Dasypus novemcinctus). Cougars in the montane Abra-Tanchipa Biosphere Reserve in southeastern Mexico displayed a cathemeral activity pattern. Data from 12 years of camera trapping in the Pacific slope and Talamanca Cordillera of Costa Rica showed cougars as cathemeral. Both cougars and jaguars in the Cockscomb Basin of Belize were nocturnal but avoided each other. In a protected cloud forest in the central Andes of Colombia, cougars were active from late afternoon to shortly before sunrise and sometimes during noon and early afternoon. In protected areas of the Madidi - Tambopata Landscape in Bolivia and Peru, cougars were active throughout the day but with a tendency to nocturnal activity that overlapped with the activity of main prey species. During an 8-year-long study in a modified landscape in southeastern Brazil, male cougars were primarily nocturnal, but females were active at night and day. Cougars were diurnal in the Brazilian Pantanal, but crepuscular and nocturnal in protected areas in the Cerrado, Caatinga and ecotone biomes. Cougars in the Atlantic Forest were active throughout the day but displayed peak activity during early mornings in protected areas and crepuscular and nocturnal activity in less protected areas. In central Argentina, cougars were active day and night in protected areas but were active immediately after sunset and before sunrise outside protected areas. Cougars displayed a foremost crepuscular and nocturnal activity pattern in a ranching area in southern Argentina.

Home range sizes and overall cougar abundance depend on terrain, vegetation, and prey abundance. Research suggests a lower limit of 25 km (9.7 sq mi) and upper limit of 1,300 km (500 sq mi) of home range for males. Large male home ranges of 150 to 1,000 km (58 to 386 sq mi) with female ranges half that size. One female adjacent to the San Andres Mountains was found with a big range of 215 km (83 sq mi), necessitated by poor prey abundance. Research has shown cougar abundances from 0.5 animals to as many as seven per 100 km (39 sq mi).

Male home ranges include or overlap with females but, at least where studied, not with those of other males. The home ranges of females overlap slightly. Males create scrapes composed of leaves and duff with their hind feet, and mark them with urine and sometimes feces. When males encounter each other, they vocalize and may engage in violent conflict if neither backs down.

Cougars communicate with various vocalizations. Aggressive sounds include growls, spits, snarls, and hisses. During the mating season, estrus females produce caterwauls or yowls to attract mates, and males respond with similar vocals. Mothers and offspring keep in contact with whistles, chirps, and mews.