elk (40 images)
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![The ultimate animal sign; an Elk skull bleached by the sun. But leave it there; All animal parts are protected in national parks [September; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000_Hpn54NkhWo/t/150/I0000_Hpn54NkhWo.jpg)
Elk skull and antlers...jpg
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![The ultimate animal sign; an Elk skull bleached by the sun. But leave it there; All animal parts are protected in national parks [September; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000ZsBD3ghRqoc/t/150/I0000ZsBD3ghRqoc.jpg)
Elk skull and antlers...jpg
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![The ultimate animal sign; an Elk skull bleached by the sun. But leave it there; All animal parts are protected in national parks [September; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000DDiHQMmR7YU/t/150/I0000DDiHQMmR7YU.jpg)
Elk skull and antlers...jpg
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Elk Running 764_6443.jpg
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Elk Out of Focus Elk ...jpg
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Elk injured 765_6544.jpg
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Elk in Frosty Field Y...jpg
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![This group of 14 (15?) cows is likely the harem of a single bull Elk [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I0000wFLlMU2KFxQ/t/150/I0000wFLlMU2KFxQ.jpg)
Elk harem Yellowstone...jpg
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![Radio collars help monitor elk herds in Yellowstone [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I00000Rp2uZkdA1M/t/150/I00000Rp2uZkdA1M.jpg)
Elk cow with radio co...jpg
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![With the reintroduction of Timber Wolves into the Greater Yellowstone area, Rocky Mountain Elk are returning to a more balanced and sustainable population [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I0000WYUHcfsYnDI/t/150/I0000WYUHcfsYnDI.jpg)
Elk bull Yellowstone ...jpg
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![Fall is an "energy expensive" season for bull Elk; They must guard their harems, battle other bulls, and also mate [October; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I00001YokgABQsx0/t/150/I00001YokgABQsx0.jpg)
Elk bull Yellowstone ...jpg
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![Fall is an "energy expensive" season for bull Elk; They must guard their harems, battle other bulls, and also mate [October; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000oNp6hB1MYp0/t/150/I0000oNp6hB1MYp0.jpg)
Elk bull Yellowstone ...jpg
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![Fall is an "energy expensive" season for bull Elk; They must guard their harems, battle other bulls, and also mate [October; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000Kg5jLZGNkc8/t/150/I0000Kg5jLZGNkc8.jpg)
Elk bull Yellowstone ...jpg
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Elk bull w-cow in Sig...jpg
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![The sound of bugling Elk on a frosty morning is something you will never forget [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I0000o5KXIvyX_x4/t/150/I0000o5KXIvyX_x4.jpg)
Elk bull sniff Yellow...jpg
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![With the reintroduction of Timber Wolves into the Greater Yellowstone area, Rocky Mountain Elk are returning to a more balanced and sustainable population [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I0000KlTmZUxKCeA/t/150/I0000KlTmZUxKCeA.jpg)
Elk bull run blur Yel...jpg
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![With the reintroduction of Timber Wolves into the Greater Yellowstone area, Rocky Mountain Elk are returning to a more balanced and sustainable population [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I0000kr8YScSlACA/t/150/I0000kr8YScSlACA.jpg)
Elk bull rubs tree Ye...jpg
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![With the reintroduction of Timber Wolves into the Greater Yellowstone area, Rocky Mountain Elk are returning to a more balanced and sustainable population [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I0000ykxVvUuze38/t/150/I0000ykxVvUuze38.jpg)
Elk bull on hill Yell...jpg
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![Fog makes for difficult shooting but often results in interesting shots [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I0000_mwUCf9xXqE/t/150/I0000_mwUCf9xXqE.jpg)
Elk bull in Fog Yello...jpg
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![Fog makes for difficult shooting but often results in interesting shots [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I0000OflYXI_h6zs/t/150/I0000OflYXI_h6zs.jpg)
Elk bull in Fog Yello...jpg
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Elk bull Head-on Yell...jpg
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Elk bull cow in cross...jpg
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![Bugling in bull Elk is like singing in birds; It is used to attract females and defend territory [September; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000aj48K7LYZRw/t/150/I0000aj48K7LYZRw.jpg)
Elk bull bugling head...jpg
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![The sound of bugling Elk on a frosty morning is something you will never forget [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I00000iQuya_DXlI/t/150/I00000iQuya_DXlI.jpg)
Elk bull bugle Yellow...jpg
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![With the reintroduction of Timber Wolves into the Greater Yellowstone area, Rocky Mountain Elk are returning to a more balanced and sustainable population [September; Yellowstone National Park, WY]](http://cdn.c.photoshelter.com/img-get/I0000.FiIkJWFKEo/t/150/I0000.FiIkJWFKEo.jpg)
Elk bull blue silhoue...jpg
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![Bull Elk are rated by the number of tines on each antler; This would be called a "6x6" [September; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I00001Uo1T_yiUf8/t/150/I00001Uo1T_yiUf8.jpg)
Elk bull backlit Yell...jpg
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![Unlike Rocky Mountain National Park where elk numbers are out of control, Yellowstone's elk population is balanced by the return of a top predator--the Timber Wolf [September; Swan Flats, Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000FbfTZNrF9vQ/t/150/I0000FbfTZNrF9vQ.jpg)
Elk bull backlit Swan...jpg
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![Bulls keep a close watch on their harems; and especially on other bulls intent on "horning in" on their ladies [September; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000CKDlttEyr0g/t/150/I0000CKDlttEyr0g.jpg)
Elk bull and cow back...jpg
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![The ultimate animal sign; Elk antlers shed last fall. But leave them there; All animal parts are protected in national parks [September; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000CRY1WBAOF20/t/150/I0000CRY1WBAOF20.jpg)
Elk antler sheds Yell...jpg
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![Bull Elk are rated by the number of tines on each antler; This would be called a "6x6" [September; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000nzvvTdkknpY/t/150/I0000nzvvTdkknpY.jpg)
Elk bull backlit Yell...jpg
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![An elk rests while a rainbow graces the landscape [October; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I00006gGbcxcN_54/t/150/I00006gGbcxcN_54.jpg)
Elk and rainbow IMG_0...jpg
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Elk bull and harem Ye...jpg
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Elk bull Yellowstone ...jpg
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Elk bull Yellowstone ...jpg
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Elk bull Yellowstone ...jpg
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Elk cow Yellowstone W...jpg
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![This elk appears to be eating a dead thistle stalk [October; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000JBGHpZNhFqw/t/150/I0000JBGHpZNhFqw.jpg)
Elk eating Yellowston...jpg
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![A bull Rocky Mountain Elk keeps close watch on his small harem in the Lamar Valley [October; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000b32I1Nt9WSU/t/150/I0000b32I1Nt9WSU.jpg)
Elk herd Yellowstone ...jpg
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![A bull Rocky Mountain Elk keeps close watch on his small harem in the Lamar Valley [October; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000GeTNuuw4ubY/t/150/I0000GeTNuuw4ubY.jpg)
Elk herd Yellowstone ...jpg
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![A bull Rocky Mountain Elk keeps close watch on his small harem in the Lamar Valley [October; Yellowstone National Park, Wyoming]](http://cdn.c.photoshelter.com/img-get/I0000qh4.519rLZY/t/150/I0000qh4.519rLZY.jpg)
Elk herd Yellowstone ...jpg
