Breeding pair 
Male : currently none (July 2025)
Female : F97
Members identified in 2025 : M436 (3x) - F97 (1x)
Members identified in 2024 : M374 (3x) - F97 (6x) - M436 (7x) - M447 (1x - identified on a buffer zone) - M408 (shot dead - no filiation)
F238 (exploratory excursion - cub 2023 from Ferpècle/Arolla)
Members identified in 2023 : M335 (2X) - F97 (2x) - F154 (1x) - M397 (1x - shot dead) - M374 (3x - shot dead) - F202 (cub - shot dead) - F209 (cub - shot dead)
F214 (cub - shot dead)
NUMBERS IN MARCH 2025 : AT LEAST 3 WOLVES, INCLUDING THE BREEDING FEMALE.
History
This pack formed in 2020, with the birth of at least 4-5 cubs in 2021. The breeding couple was then M146 and F97. Following numerous attacks on herds, a shooting permit was issued in 2022. A 10-month-old female, F117, was shot on March 5, 2022 in Nendaz. A male, M220, was also shot 12 days later in Evolène. In 2022, the pack was at the center of a controversy when, following numerous losses, a shooting authorization requested by the cantonal authorities was refused by the Swiss Federal Office for the Environment (OFEV), as the protection conditions did not meet the standards for the few protected animals. In 2023, the federal court upheld the OFEV's decision. In 2023, the pack reproduced, with the birth of at least 5 cubs. You'll find the full story in our report, since the Val d'Hérens pack is...Arsene's pack!
31/12/24 - No evidence of official reproduction, in the form of videos showing cubs, feeding and distinctive physical signs between April and June (prominent belly and/or teats) could be provided in 2024! The breeding female, F97, did not breed in 2024, our videos show this without any possible discussion. There remains the possibility, which we do not exclude in view of the way the wolf functions following a massive cull, that a subadult from 2022 may have mated, in this case with its brother from 2023 (not the same father) or an individual in dispersion. However, we would like to point out that the subadult we are talking about, F154, has not been genetically identified anywhere in the territory (or in the year 2024), nor has she been seen with any signs of pregnancy or lactation. KORA has not confirmed any official reproduction for this pack! Therefore, we believe that the cub shot in December 2024 could belong to the neighboring pack of Nendaz/Isérables. Indeed, we clearly identified a buffer zone between these two packs in 2023! On December 4, 2024, there were still a number of individuals (known to our team) in this pack, this after the killing of 5 cubs and 1 adult... The parentage results will reveal their secrets in 2025!
Of the three shots fired during the proactive cull, it would appear that none hit a member of the Herens/Mandelon pack. Since, strangely, the location of the shots is no longer given, it is clear that this location most certainly played a role in the shooting of at least two of the three individuals killed (buffer zones are still ignored by the authorities!).
At the end of 2024, there were at least 3 adult individuals remaining in the territory.
There are currently three adult wolves in the pack, including two females (a breeding female and a subadult). M436, a subadult born in 2023, may leave the pack in the coming weeks, beginning dispersal given his age and the situation. No reproduction will take place in 2025, based on solid evidence gathered. In the absence of a breeding male and if M436 leaves or has already dispersed, the pack can no longer be considered as such. This is because a pack must either consist of at least three individuals or have reproduced in the current year.
Attacks/losses 2023
The pack committed 4 attacks this year, leading to the loss of 5 sheep:
06/14 - 4 sheep (unprotected - hazardous attribution)
08/09 - 2 sheep - M374 (unprotected)
08/11 - 2 sheep) - M374 (protected
08/13 - 1 sheep (protected)
08/15 - 1 sheep - M374 (unprotected)
08/18 - 1 sheep (unprotected)
08/25 - 1 sheep (unprotected)
08/29 - 1 sheep (protected)
09/28 - 1 sheep (protected)
10/19 - 1 sheep (unprotected) *
11/21 - 7 sheep (unprotected) *
11/27 - 3 sheep (unprotected) *
11/29 - 6 sheep (unprotected) *
12/06 - 2 sheep (protected) *
* Given the location where the sheep has been killed and the DNA records of the Hérens and Anniviers packs, these attacks took place in a clear buffer zone. They may therefore have been committed by either of these two packs. Without DNA, there are still doubts as to the perpetrators of these attacks and the pack to which they should be attributed.
We won't be providing any explanations about this pack, the attacks it has actually committed or those that have been attributed to it without proof or falsely, since an official report will be published in 2025, containing the entire history and evolution of the pack since its creation in 2021. There will be much to say, explain and detail...
No authorization for reactive regulation has been requested for 2023, as the pack has not reached the required quotas.
Attacks/losses 2024
01/31 - 1 goat (unprotected)
05/06 - 6 sheep (unprotected - fences not up to standard) *
05/18 - 3 sheep (unprotected - fences not up to standard) *
09/02 - 1 sheep (unprotected - animal not returned to park at night)
09/14 - 1 sheep (protected)
11/21 - 1 goat (possibly unprotected)
12/01 - 1 sheep (possibly protected)
12/11 - 2 sheep/goat (possibly protected)
12/21 - 4 sheep (possibly protected)
* Given the location where the sheep has been killed and the DNA records of the Hérens and Anniviers packs, these attacks took place in a clear buffer zone. They may therefore have been committed by either of these two packs. The DNA of M447 should be tested with both breeding couples. But without DNA, there are still doubts as to the perpetrators of these attacks and the pack to which they should be attributed.
12/16 : January 1 to present, the pack had killed 11 sheep. 8 were protected, 3 unprotected! At the time of the original application for regulation (August 2024), the pack had killed only one sheep in NON-PROTECTED status in 2024. Following the FOEN's refusal, a new application was made, at which point the pack had killed 1 sheep in a protected situation and 2 in an unprotected one. The definition of what constitutes significant damage to livestock is highly contentious in this case. Hoping to obtain less than 4-5 sheep killed in a protected situation, over the course of an entire year and affecting 2 or 3 different farms, is highly utopian! Based on thoroughly analyzed scientific data, the Hérens/Mandelon pack killed 9 sheep in 2023, including 4 were protected. Let's not forget that 5 wolves from the pack were killed in winter 2023/2024 (including the breeding male), and that it had clearly stabilized compared to 2021/2022. We'll be explaining the whole situation in great detail in the official report on the pack study in summer/autumn 2025.
2023: 5 animals killed in protected situation, on 2 different farms, and 5 wolves shot in winter 2023/2024 (the breeding male, 1 subadult 2022 and 3 pups 2023).
2024: 8 animals killed in protected situation (only one at the time of the request for proactive regulation in September 2024...), on 2-3 different farms and no wolf of the pack killed during the proactive regulation 2024/2025.
Attacks/losses 2025
05/21 - 1 sheep (protected)
05/25 - 1 sheep (unprotected)
We would like to point out that attacks of this kind may be due to a subadult, M436 in this case, which makes frequent exploratory excursions before leaving the territory. This is training and an interest in ease and opportunity.
Proactive regulation 2023-2024
12/05 - 1 pup - F203 (not related to the Hérens-Mandelon pack - pup of Ferpècle-Arolla pack)
12/07 - 1 adult - M379 (not related to the Hérens-Mandelon pack --> future breeding male of Ferpècle-Arolla)
12/07 - 1 pup - F204 (not relared to the Hérens-Mandelon pack --> pup of the Ferpècle-Arolla pack)
12/08 - 1 pup - F202 (pup from Hérens-Mandelon pack)
12/13 - 1 pup - F214 (pup from Hérens-Mandelon pack)
12/16 - 1 pup - F209 (pup from Hérens-Mandelon pack)
12/18 - 1 adult - M397 (subadult 2022 from Hérens-Mandelon pack)
12/21 - 1 adult - M408 (not related to the Hérens-Mandelon pack - dispersing wolf)
01/13 - 1 adult - M374 (breeding male 2023 from Hérens-Mandelon pack)
Four of the nine individuals shot did not belong to the Hérens-Mandelon pack ! While in the case of M408, given the location of the shot (Les Rongiers, on the edge of the perimeter), we can assume that a disperser found himself in the wrong place at the wrong time, there was no such thing as bad luck in the case of the other three individuals shot. The final report will deal in detail with this regulation phase and the problems encountered !
Official headcounts at November 30, 2023 : 3-4 adults & at least 5-6 cubs.
POST-REGULATION NUMBERS (MARCH 2024) : 4 ADULT/SUBADULT WOLVES.
Proactive regulation 2024-2025
11/06 - 1 adult - M246 (breeding male of Nendaz-Isérables, shot before the official authorization of this pack !)
11/10 - 1 cub - F238 (subadult 2023 of the Ferpècle-Arolla pack)
12/12 - 1 cub - M514 (has no connection with Hérens-Mandelon, logically since the latter did not reproduce in 2024!)
The cantonal authorities requested that the entire pack be shot in the proactive regulation phase (from September 1, 2024 to January 31, 2025). This request was rejected by the Federal Office of the Environnement (OFEV) on September 11, 2024, as the conditions had not been met. The authorities wish to appeal.
Following a visit by Mr Favre, Valais State Councillor, to the Federal Palace to meet Albert Rösti and the Director of the OFEV (Federal Office for the Environment), the shooting permit was issued in October 2024. The shooting of this pack in no way complies with Article 9 of the Bern Convention !
NOTE: THE LOCATION OF THE NEIGHBORING PACK'S DEN (NENDAZ/ISÉRABLES) HAS BEEN KNOWN TO OUR TEAM SINCE SPRING 2023. IT LIES IN THE IMMEDIATE VICINITY OF A BUFFER ZONE WITH THE HÉRENS/MANDELON PACK, NOT TAKEN INTO ACCOUNT BY THE CANTONAL AUTHORITIES. SO THE SHOOTING PERIMETER INCLUDES TWO EXTREMELY IMPORTANT AND RECOGNIZED BUFFER ZONES WITH 2 DIFFERENT PACKS!
As clearly shown by the shooting results of these two phases of proactive regulation for the Hérens-Mandelon pack, the outcome is clearly negative! Many individuals from neighboring packs (Ferpècle-Arolla & Nendaz-Isérables) are shot “by mistake” (which is no longer the case at this stage), demonstrating a very poor assessment of territories and a total disregard for buffer zones and shooting perimeters to be avoided! This is extremely regrettable because if we had been consulted, we could have provided a great deal of evidence and information that would undoubtedly have prevented most of these shooting errors. The inability to communicate with the cantonal authorities is deplorable, as is the validation of the perimeters by the FOEN and KORA without inspection or further investigation.
Photo : Wolf Mission (F154)