Female elk deer are usually alone or with offspring, while males are solitary except during mating season when they join females in herds of 50. Mothers hide newborns in long grass for protection, and elk deer eat grasses, fruits, and plants from fields and wetlands. The elk deer population is endangered with declines in Burma but increases in Manipur, where only 250 remain. The species' numbers have decreased 90% in the last decade and are still falling.