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Helicopter trip finds endangered mammals thriving on Chile peak. ‘Hopeful sign’

Conservationists used a helicopter to survey the mountains of Chile for huemul deer, an endangered mammal species, and discovered a new population.
Conservationists used a helicopter to survey the mountains of Chile for huemul deer, an endangered mammal species, and discovered a new population. Screengrab from video shared by Rewilding Chile

In a remote part of southern Chile, a helicopter took off and approached an even more remote mountaintop. Conservationists watched out its windows and, to their amazement, saw the endangered mammal they were looking for standing “right there.”

That was just the beginning.

Cabo Froward sits at the “southernmost point” of South America; it’s a rugged and largely unexplored region slated to become a national park, Rewilding Chile said in a July 9 Instagram post. As part of this process, research teams have been conducting biodiversity surveys of the area.

The team stands on a ridge in Cabo Froward during the February survey.
The team stands on a ridge in Cabo Froward during the February survey. Photo from Eduardo Hernández for Rewilding Chile

“About a year ago, during a forest restoration expedition carried out by boat, we had an unexpected encounter,” Cristián Saucedo, the organization’s wildlife director, told McClatchy News. On the coast stood a huemul deer.

Huemul deer, also known as South Andean deer, are an “elusive” and “discreet” mammal species known to inhabit “the mountainous regions of southern Chile and Argentina,” the organization said. Due to habitat loss, hunting and competition from invasive animals, the species has lost “more than 99%” of its population and is endangered with only about 1,500 surviving deer.

Two huemul deer, or South Andean deer, seen on a peak in Cabo Froward in February.
Two huemul deer, or South Andean deer, seen on a peak in Cabo Froward in February. Photo from Eduardo Hernández for Rewilding Chile

Conservationists had long suspected huemul deer might live in Cabo Froward, but the team’s 2024 sighting sparked new efforts to find these animals, Saucedo said via email.

Initial search efforts identified some promising mountain valleys but reaching these sites on foot was “extremely difficult,” Saucedo said. “That’s when we turned to helicopters.”

In February, two teams of conservationists used helicopters to reach the remote peaks then spent three days surveying the area.

“As we approached the very first ridge, several huemuls appeared — as if they had been waiting for us,” Saucedo said.

A huemul deer, or South Andean deer, seen on a mountain in Cabo Froward in February.
A huemul deer, or South Andean deer, seen on a mountain in Cabo Froward in February. Photo from Eduardo Hernández for Rewilding Chile

“It was surprising … to see a huemul right there,” Miguel Lopetegui, a park ranger with the Chilean Forestry Service who participated in the trek, said in the organization’s Instagram video, according to translated captions. “This was our welcome, which left us very excited and energized.”

The team eventually saw about 10 huemul deer and realized they’d discovered a “previously unknown” population thriving on the remote peak, the organization said.

A close up view of a huemul deer on a peak in Cabo Froward in February.
A close up view of a huemul deer on a peak in Cabo Froward in February. Photo from Eduardo Hernández for Rewilding Chile

Conservationists described the new population as “a hopeful sign” for the endangered species.

“Our hope is to find additional groups of huemuls in other nearby mountain ranges,” Saucedo said.

The team set up dozens of trail cameras and is planning a follow-up helicopter expedition. They are also continuing other monitoring and surveying efforts at Cabo Froward.

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This story was originally published July 11, 2025 at 7:26 AM with the headline "Helicopter trip finds endangered mammals thriving on Chile peak. ‘Hopeful sign’."

Aspen Pflughoeft
McClatchy DC
Aspen Pflughoeft covers real-time news for McClatchy. She is a graduate of Minerva University where she studied communications, history, and international politics. Previously, she reported for Deseret News.
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