Elk are the second-largest member of the deer family in North America, behind only moose. A mature bull weighs 700 to 1,100 pounds, stands roughly five feet at the shoulder, and carries antlers that can stretch four to five feet from main beam to tip. Cows run smaller — 450 to 600 pounds — and have no antlers. The coat is tawny across the body with a darker chocolate neck and a pale rump patch that you can pick out at distance in low light. The species is built for open country: long legs, deep chest, and a four-chambered gut that lets it switch between grass on summer alpine basins and woody browse in winter river bottoms.
They live in herds — cows and calves run together year-round, bulls split off into bachelor groups outside the rut. The rut hits in September and runs into October, and that's the window most western hunters circle on the calendar. A bull will rake trees, wallow in mud, and bugle from before sunrise until well after dark trying to hold cows and chase off rivals. Outside the rut they go quiet and pattern-feed at dawn and dusk between dark north-slope timber and open feeding areas. Wolves, mountain lions, and black bears all take elk; winter range loss to development is the bigger long-term pressure on most herds.