Lead toxicosis remains the primary cause of death in wild populations of California condors
Analyze a graph showing how the population of California condors
has changed overtime.
In the Salinas Valley, the king of birds is the federally endangered California condor
. There are roughly 90 birds in Central
Right now, that debate is playing out with special urgency in Oregon in anticipation of arrival of California condors
With a wingspan of almost 10 feet, the California condor
(Gymnogyps californianus) is the largest land bird in North America, and with a lifespan of up to 60 years, is also one of the world's longest-living birds.
Freelance writer and photographer Chuck Graham lives one mountain range away from the Condor Trail, where he's spent much time photographing endangered California condors
In late 1984 and early 1985, six California condors
(Gymnogyps californianus) died in the wild, leaving just nine wild and 21 captive condors in the world.
weigh more than 25 pounds and have wingspans up to 10 feet.
Jerry Brown signed Assembly Bill 711 into law, eventually making it illegal to hunt anywhere in the state with traditional lead ammunition despite the fact a key governmental report on the presence of lead in blood samples from California condors
was never released.
These lead-containing fragments remain the principal source of lead exposure to endangered California condors
and continue to prevent the successful recovery of these birds in the wild (Church et al.
The group is creating a movement around de-extinction, and is taking the lead on efforts to bring back the passenger pigeon while helping out on other ongoing efforts to restore other extinct species including European aurochs, Pyrenean ibexes, American chestnut trees, Tasmanian tigers, California condors
, even wooly mammoths.
The world population of free-flying California condors
dropped to 22 birds by 1982, and biologists stepped in with an ambitious plan to save them.
The areas to be remodeled include "Elephant Odyssey;" a state-of-the-art elephant management facility; exhibits for California condors
, lions, jaguars and tree sloths; and merchandise, dining and support facilities.
* The Yurok Tribe of the Klamath River Reserve in northern California will get a $200,000 grant to study the feasibility of reintroducing California condors
to the Yurok Ancestral Territory.