Chital are active throughout the day. In the summer, time is spent in rest under shade, and the sun's glare is avoided if the temperature reaches 80 °F (27 °C); activity peaks as dusk approaches. As days grow cooler, foraging begins before sunrise and peaks by early morning. Activity slows down during midday, when the animals rest or loiter about slowly. Foraging recommences by late afternoon and continues till midnight. They fall asleep a few hours before sunrise, typically in the forest which is cooler than the glades.[23] These deer typically move in a single file on specific tracks, with a distance of two to three times their width between them, when on a journey, typically in search of food and water sources.[4] A study in the Gir National Park (Gujarat, India) showed that chital travel the most in summer of all seasons.[24]
When cautiously inspecting its vicinity, the chital stands motionless and listens with rapt attention, facing the potential danger, if any. This stance may be adopted by nearby individuals, as well. As an antipredator measure, chital flee in groups (unlike the hog deer that disperse on alarm); sprints are often followed by hiding in dense undergrowth. The running chital has its tail raised, exposing the white underparts.[23] The chital can leap and clear fences as high as 1.5 m (4.9 ft), but prefers to dive under them. It stays within 300 m (980 ft) of cover.[15]
A gregarious animal, the chital forms matriarchal herds comprising an adult female and her offspring of the previous and the present year, which may be associated with individuals of any age and either sex, male herds, and herds of juveniles and mothers.[18][25]Small herds are common, though aggregations of as many as 100 individuals have been observed.[4]Groups are loose and disband frequently, save for the juvenile-mother herd.[26] Herd membership in Texas is typically up to 15;[18] herds can have five to 40 members in India.[23][27] Studies in the Nallamala Hills(Andhra Pradesh, India) and the Western Ghats(western coast of India) showed seasonal variation in the sex ratio of herds; this was attributed to the tendency of females to isolate themselves ahead of parturition. Similarly, rutting males leave their herds during the mating season, hence altering the herd composition.[25] Large herds were most common in monsoon, observed foraging in the grasslands.[27]Predators of the chital include wolves, Bengal tigers, Asiatic lions, leopards, Indian rock pythons, dholes, Indian pariah dogs, and mugger crocodiles. Red foxes and golden jackals target juveniles. Males are less vulnerable than females and juveniles.[15][23]

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