A large mule deer buck rouses a specific female during the autumn rut. Rocky Mountain Arsenal NWR, Colorado.
The autumn mule deer rut (mating season) action has begun at Rocky Mountain Arsenal, with bucks competing for the attention of does. I was out one evening last week and located a herd of five bucks and ten or so does. It’s interesting to watch smaller bucks follow does, tasting the air for estrus, and thinking they’ll get a chance to mate until a much larger buck emerges from tall grass and takes over. Rocky Mountain Arsenal NWR is renowned for big bucks; and although their numbers are down from historical populations, there are some very large deer at RMA. The rut will continue into December, generally peaking before Thanksgiving. In early December, you can observe larger groups of deer, often a single, big buck with harem. Take the auto tour route and be prepared to photograph from your open car window. I often travel with a 400mm lens ready to shoot.
A large mule deer buck pauses to look at the photographer while following a doe during autumn rut. Rocky Mountain Arsenal NWR, Colorado.