PEEC Nature Youth Group

The conflict between mountain lions and domestic animals poses a major challenge to Los Alamos County. Mountain Lions existed on the Pajarito Plateau long before the town of Los Alamos existed. With large populations of deer and other native wildlife, the mountain lion plays a critical role as the apex predator in our area. Unfortunately, if dogs and domestic cats are left outside unattended or other easy prey is available, conflict occurs. Either pets or livestock are killed along with the offending mountain lion. This conflict has occurred over the years at our local stables, where an abundance of accessible food is sometimes too tempting for mountain lions to ignore. The youth group met with Lisa Reader at the stables to better understand the problem. What initially sounded like a difficult problem to solve due to the size of the stables, and the number of open pens with easy prey, became a more manageable problem. Lisa informed us that attacks at the stables primarily occur on the canyon side, often only in pens with smaller livestock such as goats. We talked to the Mountain Lion Foundation about potential mitigation ideas for this problem. A solution needed to be found that wouldn’t scare the livestock, or disturb people who often walk nearby while still deterring predators. They described a case in California where playing talk radio was quite effective in preventing lion attacks since they do not approach when human voices are nearby. For our stables, playing talk radio all night long did not sound practical. We thought we would try to find a mitigation effort that would be more targeted. To do that we would need to only play the talk radio when a lion approached. PNYG is trying to use a combination of critter cams to check when a lion is in the area, then use machine learning to analyze the photos in real time to detect the lion and then activate the talk radio. This is a work in progress. We have obtained 1000s of trail cam images of mountain lions and other wildlife from mountain lion expert Mark Peyton who worked for NPS at the Valles Calderas. This is perfect for training our machine learning algorithms to pick out lions from all the other activity that occurs at the stables. If successful, we would have a more targeted mitigation approach than currently exists.  In short, mountain lions are being killed far too often in our county, and we hope to improve the situation. Because of this, our group decided that creating an effective deterrence system to keep both our livestock and the cougars safe was a solution that would greatly benefit our town. Let’s hope we are successful.

Read all about us in PEEC’s 2025 Winter Nature Notes.