A large bull splashing through the Madison River near sunset.

Yellowstone Elk and Grand Teton Moose

The following photos were made September 21 and 23 of 2010.

Bugling Bull Elk
Bull elk drinking from the Madison River in Yellowstone National Park.
This bull has a nice symmetrical rack with six points on each antler.
Bull elk are much larger than the cow in foreground. Very large bulls can weigh up to 1000 lbs. while cows weigh up to 650 lbs.
During the elk breeding season, called the rut, bulls round up groups of cows called harems and guard them jealously against take-over attempts by rival bulls. This can result in fights between large bulls.
It is not a good idea to try to approach a large bull too closely, especially during the rut.
Bull and cow photographed in the warm light of late afternoon.
A large bull splashing through the Madison River near sunset.
This and the following photo were made September 27, 2007.
Notice that this bull has one tine completely broken off and two others shortened. This is almost certainly the result of a fight with another bull. Such fights are common between large bulls during the rut as they battle for control of territory and cows.
The moose is the largest member of the deer family with bulls weighing up to 1400 lbs. and cows up to 1100 lbs. This large bull was photographed in Grand Teton National park on September 23, 2010.

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