Friday, May 14, 2010

Lead poisoning threatens rare wild condor chick

In April National Parks Traveler reported on the first condor chick to hatch in the wild in 100 years.

Now they report that toxic levels of lead is threatening the 50-day-old hatchling. Initially treated with chelation - a calcium EDTA injection that binds with heavy metals to avoid tissue retention - the chick's health continued to decline and biologists evacuated it to a special treatment facility.
Lead poisoning has been an on-going problem for condor populations. Condors are exclusively scavengers, feeding on a wide range of dead mammals. Research has established that the principle source of lead exposure among condors is lead ammunition.

Lead Ammunition has been banned for the taking of big game in a wide region of central and southern California, although that move has been a controversial one for some hunters. Park officials note that shooters who have made the switch to non-lead ammunition have made an invaluable contribution to the health of scavenging wildlife.
Lead levels were also found to be toxic in the condor father and he was also given chelation at the Los Angeles Zoo. Biologists are also trying to trap the mother condor to determine is she also has been exposed to lead.

Read the full story: Bad news for condor chick at Pinnacles National Monument

Photo by Gavin Emmons / National Park Service

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