Login or create account to vote for photo of the month

Yellowstone Wolf: Project Citizen Science logo

Yellowstone Wolf: Project Citizen Science

Yellowstone's wolf packs—Blacktail Deer Plateau Pack

During November 2008, 6 males from the former Druid Peak pack and 4 females from the former Agate Creek pack joined to form the Blacktail Deer Plateau Pack. Wolves 693F and 302M were the original alpha pair until 302M was killed by other wolves (likely the Quadrant Mountain pack) in October 2009. Wolf 778M (collared in January 2011 and previously referred to as “Big Brown”) replaced 302M as the alpha male and maintained his alpha-pair status with 693F until October 2014 when 693F died of unknown causes. 778M remained the alpha male. The Blacktail Deer Plateau pack was the largest Northern Range pack in 2011 and 2012 with a high count of 15 wolves. The pack decreased in size substantially in 2013, primarily due to dispersal (at least 2 males), intraspecific-caused mortality (at least 1 female), unknown mortality (693F) and legal harvest in Montana (at least 1 collared female). After the long-standing alpha female, 693F, died in October 2013, the alpha male 778M has been travelling with 3-4 uncollared and unknown wolves. This includes a gray adult female, a gray pup, a black pup, and 911M (gray adult male with class 1 mange). In early 2014, 911M left the pack and eventually joined the Junction Butte pack and the other uncollared pups have not been observed. As of the 2014 denning season, only the alpha pair remain (778M and uncollared gray adult female) but they do not appear to have denned.



Pack composition

ID Social status Age class Color Sex Age Mange status Birth year Birth pack Description
778MAlphaAdultGrayMale7Uninfected2007Druid PeakHas black on tail-tip.
No ID yetAlphaUnknownGrayFemale?UninfectedThis wolf is of unknown origin and became the alpha in October 2013 after 693F (the previous alpha female) died of unknown causes.


33 photos for this pack


Past pack members

ID Social status Age class Color Sex Age Mange status Birth year Birth pack Death year Description
693FAlphaAdultGrayFemale8Uninfected2006Agate Creek2013White tail tip. Was thought to have possibly dropped her collar in October 2013 but was later found dead of unknown causes when the collar was recovered.
911MSubordinateAdultGrayMale4Infected2010Birth year 2010 or 2011. This wolf was with the Blacktail alpha male (778M) from fall 2013 until the 2014 breeding season. Later in the winter he was with 755M, 889F, and a black adult female from the Junction Butte pack. During the 2014 denning season, he and the Junction Butte black adult female re-joined the Junction Butte pack. Has a scraggly coat and is often observed itching/scratching. Sometimes is with the Junction Butte pack, the Junction Butte Black adult female, and sometimes he is by himself.