Sexual desire or œstrus of deer, cattle, and various other mammals; heat; also, the period during which the œstrus exists.

To have a strong sexual impulse at the reproductive period; -- said of deer, cattle, etc.

The breeding period, as in deer.

a specific time of year in which hoofed animals mate.

mating season for elk

applies to nonhuman mammals: a state or period of heightened sexual arousal and activity

be in a state of sexual excitement; of male mammals

The mating season of Moose. During mating season bull Moose dig rutting pits in the ground with their hooves, urinate in the pit, and then roll in the urine to cover themselves with this natural 'perfume' in order to help attract cow Moose.

A period of concentrated mating; the mating season. Often used with reference to males.

"the rut" is the period when deer breed

a period of sexual excitement; the mating season (especially in the deer family)

males of certain species of mammals become sexually active and aggressive during a period prior to mating e.g. antlered an horned hoof species and some elephants.

the breeding period of deer (i.e. moose and caribou).

Rutting An annually recurring condition or period of sexual excitement and reproductive activity in male deer, OR, A condition or period of mammalian sexual activity, such as estrus.

breeding season.

"The Rut" is the period of time when antlered ungulates, such as deer, sheep, elk, moose, caribou, ibex, goats, pronghorn and Asian and African antelope, mate. The rut for white-tailed deer usually lasts from 1-3 months in the northern hemisphere and may occur most of the year in tropical zones. The Rut is triggered by a shortening of the length of daylight hours (referred to as photoperiod) each day.