Degree of Threat: A : Very threatened throughout its range communities directly exploited or their composition and structure irreversibly threatened by man-made forces, including exotic species
Comments: Decline in wild population prior to 1987 was due to lead and cyanide poisoning (lead poisoning from ingestion of bullets in hunter-killed carcasses); shooting; removal from wild of eggs, young, and adults for captive breeding; and unknown causes.
A large proportion of reintroduced condors and condor nestling have died from anthropogenic causes(e.g., collisions with power lines, ingestion of toxins). As of 2008, mortality from lead poisoning continued to be a significant threat in California and Arizona. In California, chick mortality resulting from ingestion of anthropogenic material (trash) is a serious concern. In fact, Mee et al. (2007) concluded that junk ingestion has been the primary cause of nest failure in the reintroduced condor population and threatens the reestablishment of a viable breeding population in southern California.