Analysis of historical medical records of California condors (Gymnogyps californianus
) admitted for lead exposure to the Los Angeles zoo and botanical gardens between 1997 and 2012: a case series study.
Junk ingestion and nestling mortality in a reintroduced population of California condors Gymnogyps californianus
. Bird Conserv.
Known endearingly by many wildlife biologists as the "Class of '67," this group included many iconic species such as the grizzly bear (Ursus arctos horribilis), California condor (Gymnogyps californianus
), whooping crane (Grus americana), and bald eagle (Haliaeetus leucocephalus), which was successfully recovered and removed from the endangered species list in 2007.
It is not known what effect these viruses will have on small, at-risk wild bird populations, such as California condors (Gymnogyps californianus
), that may prey on or scavenge infected birds, but the possible effects should be considered in conservation management decisions.
The California Condor (Gymnogyps californianus
) is a New World vulture, the largest North American land bird.
Patterns of mortality in free-ranging California condors (Gymnogyps californianus
Large herds of ungulates supported the California condor (Gymnogyps californianus
) and larger carnivores, including wolves and grizzly bears (Schoenherr 1992; Wilbur 2004).
The Californian (Gymnogyps californianus
) is one of the living birds most in danger of extinction: In 1987, there was only a single specimen of the California condor in the wild and 27 in zoos.
A more accurate, but complex approach was used by Geyer and Thompson (1995) to estimate founder relatedness among captive California Condors (Gymnogyps californianus
If the condor habitat were somehow restored across the prehistoric breeding range and the species left alone within it for a few decades, Gymnogyps californianus
would return as an abundant bird across hundreds of thousands of square miles of the American landscape.
Today, Gymnogyps californianus
is near extinction, and all 27 remaining animals are living in captivity as part of a breeding program (SN: 4/25/87, p.263).