North American elk

Large North American bull elk with aspen trees during the rut in Rocky Mountain National Park, Colorado

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

Magpie and cow elk

A black-billed magpie perched on the back of an elk in Rocky Mountain National Park near Estes Park, Colorado

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

Male elk sparring

Two bull elk sparring in an open meadow at sunrise in Rocky Mountain National Park near Estes Park, Colorado

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elkrubs its antlers on an aspen tree during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk laying down in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.

North American elk

A large bull North American elk standing in an open meadow during the rut in Rocky Mountain National Park in Colorado.