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Full Breakdown

San Francisco Mountain Lion Captured and Released After Hours-Long Standoff

By Drooid · · How we work

Incident Overview

On a Friday morning in the Outer Sunset neighborhood, a young male mountain lion was sighted moving through yards and along 44th Avenue near Ulloa Street. Police, San Francisco Animal Care & Control, and California Department of Fish and Wildlife (CDFW) responders blocked the streets, issued a city alert, and tranquilized the animal after several hours of maneuvering. The lion was examined, fitted with a GPS tracking collar, and released back into suitable wild habitat later that day.

Background on Urban Lion Dispersal

CDFW officials explain that young male mountain lions, typically 2–3 years old, often disperse from their natal ranges in search of territory. Without a mother’s guidance, they may travel into urban environments where established adult males already dominate, sometimes bringing them into densely populated neighborhoods.

Timeline of Friday’s Events

  • Early Friday morning – Residents reported a large cat moving between bushes and front yards.
  • Shortly after – Police and Animal Care & Control officers arrived, set up roadblocks, and began a coordinated search.
  • Approximately 7:30 a.m. – The lion was observed near Ulloa Street and 44th Avenue.
  • Around 10:00 a.m. – A first tranquilizer dart missed; the animal fled into vegetation.
  • Half an hour later – A second dart took effect; the lion was sedated, captured, and taken to a staging area for health assessment.
  • Later that morning – After a brief medical check, the animal was fitted with a GPS collar and released.

Data on the Captured Lion

  • Sex/Age – Male, estimated 2–3 years old.
  • Weight – Approximately 78–79 pounds.
  • Collar – GPS satellite collar provided by the Santa Cruz Puma Project for ongoing monitoring.
  • Capture Frequency – This is the second young male captured in San Francisco this year, according to CDFW.

Official Agency Responses

  • San Francisco Animal Care & Control: Advised residents to stay indoors, back away slowly if they encounter a mountain lion, make themselves appear larger, and keep pets leashed.
  • City of San Francisco: Reiterated the warning to “make yourself big,” wave arms, shout, and avoid running, following standard protocol for large-cat encounters.

Resident Accounts

Neighbors described the scene as “wild” and “incredible,” noting the lion’s movement across front yards and the extensive police presence. One resident heard birds “squawking frantically” before seeing the animal, while another mentioned a “ten-minute standoff” as officers worked to tranquilize the cat.

Conflicting Reports and Remaining Questions

  • Identity of the Animal – Officials have not confirmed whether the Friday lion is the same individual observed perched in a tree in the Panhandle on September 5.
  • Number of Sightings – Social-media posts have mentioned additional unverified sightings near Golden Gate Park and other city locations, but no further captures have been reported.

Verbatim Quotes

  • “It was wild to see a mountain lion in a big city like this. It's pretty incredible,” — Alex Grant, San Francisco resident
  • “I made my way over here at 10 o'clock. That's when I saw all the police cars, caution tape, and I hung around and wanted to see what was really a mountain lion in the Outer Sunset, which it was,” — Carson Ryan
  • “It’s really exciting to see it so close,” — Mark Mahoney