Posted by: Susan Burchardt, Raptor Keeper Turkey vulture Modoc in flight at Woodland Park Zoo. Photo by Dennis Dow/Woodland Park Zoo. Vultures are often depicted as harbingers of death, yet many vulture populations face threats of their own with some species facing extinction. We’re celebrating International Vulture Awareness Day on September 3 to help zoo visitors look past the vultures’ bad reputation and highlight their vital ecological niche as nature’s clean-up crew. California condor at San Diego Zoo. Photo by Wikimedia Commons user Snowmanradio. Vultures are scavenging birds that help recycle and prevent the spread of disease. But serving as a clean-up crew by feeding on carrion was partially what led to the California condor (Gymnogyps californianus)—a New World vulture—dipping down to a dismally low population of just 22 birds in the 1980s. The condors were dying from feeding on lead-poisoned carcasses, and poaching and habitat destruction compounded the problem. Zoos