Record number of California condor chicks hatched in the southwest’s wild population this year

Female condor 409 near her nest where chick 1,000 lives in Zion National Park, Utah, date not specified | Photo courtesy of the National Park Service, St. George News

ST. GEORGE — Grand Canyon National Park documented the fifth wild-hatched California condor chick in the southwestern wild population Oct. 10, making it an annual record number of chicks, or nestlings, within the region.

The nestling, identified by its studbook number of 1005, is estimated to have hatched May 9 from a mating pair with stud numbers 423, a female with wing tag E3, and 521, a male with wing tag J1, at O’Neill Butte.

“We knew that the parents were exhibiting nesting behavior, and it took us a few months to locate it,” said Miranda Terwilliger, a wildlife biologist and Grand Canyon’s condor project manager. “One of our long-time volunteers Bob George, known as Condor Bob, found the nest and chick.”

The mating pair had their first nestling, numbered 850 with wing tag T0, fledge, or successfully leave the nest, from the park’s Newton Butte in 2016. Number 1005 is the pair’s second nestling since number 850.

Positive documentation of wild hatched chicks are recorded with the San Diego Zoo and they assign the studbook number for California condors.

There are currently four wild population areas for the birds: Baja California, Mexico; central California; Southern California; and the southwestern U.S. There are currently 98 free-flying condors in the southwestern wild population and as of December 2018, an overall wild population of 312 birds.

There were 22 condors left in the world in the 1980s, which resulted in the development of the California Condor Recovery Program to save the species from extinction. Six captive-bred condors were released into the wild at Vermilion Cliffs National Monument by the Peregrine Fund in 1996, and since then, Grand Canyon has partnered with them and others in the Southwest Condor Working Group to recover the population.

The father of chick 1005, California condor 521, flying in the vicinity of the O’Neill Butte nest, Grand Canyon National Park, Arizona | Photo courtesy of the National Park Service, St. George News

Grand Canyon provides a protected land resource for breeding, nesting and scavenging habitat with minimized threats. The park’s wildlife program monitors condor activity, population, nests and overall health within park boundaries as well as educates visitors about the species and recovery efforts. One of the highlights for the park was the first successfully hatched and fledged wild condor in 2003.

“It’s important to note that we wouldn’t be as successful without the help of our volunteers. It makes all the difference,” Terwilliger said.

The Peregrine Fund leads all condor releases for the Southwestern population at Vermillion Cliffs National Monument. The last public release was conducted on Sept. 28, and four captive-bred condors were released.

The southwestern, or Arizona-Utah, recovery effort is a cooperative program by federal, state and private partners, including The Peregrine Fund, Arizona Game and Fish Department, U.S. Fish and Wildlife Service, the Bureau of Land Management’s Vermilion Cliffs National Monument, Grand Canyon and Zion national parks, Utah Division of Wildlife Resources and Kaibab and Dixie National Forests among many other supporting groups and individuals.

For more information about Grand Canyon’s Condor program visit:, or for more information about California Condors in Arizona, visit:

Copyright St. George News, LLC, 2019, all rights reserved.

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