05/13/2026
P48 was first captured in November 2024 and named “Atlas.” He weighed 120 lbs and was estimated to be around 3 years old. On encountering our deer bait, he dragged the bait AND the log it was tied to, away and up a hill. Mountain lions are such powerful animals! Since his capture, Atlas has been actively establishing his territory in Sonoma’s west county.
With a collar battery life of about 1.5 - 2 years, we were looking for an opportunity to re-collar him this year to continue monitoring his movements. Thankfully, that moment came on Sunday, Apr 12. At almost 5 years old, his gorgeous tail has grown by 7 cm to a luxuriously long 86cm, and he looked in good health! After conducting blood tests, we were relieved to learn that he also tested negative for both FIV and FeLV.
In December last year we documented Atlas spending 3 days with P49 suggesting they were mating. On the 23 March, P49 gave birth to a litter of 3 kittens we now know are most likely Atlas’. His presence as a territorial male will be important in protecting his kittens from lion intruders looking to take over his territory. With both Atlas and P49 collared, we can keep a keen eye on the progress of these magnificent animals.