A pair of Cape vultures is seen in their enclosure...

A pair of Cape vultures is seen in their enclosure at the Vulture Programme at Boekenhoutkloof near Hartbeespoort Dam, South Africa, Wednesday, Sept. 22, 2011. Credit: AP/Denis Farrell

CAPE TOWN, South Africa — At least 123 vultures died in South Africa's flagship national park after eating the carcass of an elephant that was poisoned by poachers with agricultural pesticides, park authorities and an animal conservation group said Thursday.

Another 83 vultures that were rescued from the site and transported for treatment by helicopter or a special vulture ambulance were recovering.

The mass poisoning was one of the worst seen in the famous Kruger National Park in northern South Africa, said SANParks, the national parks agency.

Vultures are key to wildlife ecosystems because of the clean up work they do feeding on the carcasses of dead animals. But that also makes them especially vulnerable to poisoning by poachers, either intentionally or as a result of the killing of other animals. Hundreds of vultures typically feed on a carcass.

The elephant had been poisoned by poachers in a remote part of the huge park to harvest its body parts for the illegal wildlife trade, SANParks and the Endangered Wildlife Trust said.

Many vulture species are endangered in Africa because of poisoning and other threats to them. The affected birds in Kruger included Cape vultures, endangered lappet-faced vultures and critically-endangered white-backed and hooded vultures.

“This horrific incident is part of a broader crisis unfolding across southern Africa: the escalating use of poisons in wildlife poaching,” SANParks and the Endangered Wildlife Trust said in their joint statement. “Poachers increasingly use agricultural toxins to target high-value species.”

The Kruger National Park covers approximately 20,000 square kilometers (7,722 square miles) and is nearly twice the size of small countries like Jamaica and Qatar.

Rangers say they face a daily battle to guard species like rhinos, elephants and lions from poachers.

Vulture conservation organization Vulpro, which was not involved in the rescue, said the poisoning came at the start of the breeding season and many other birds that weren't found at the site could still be affected.

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