Private reserve on a working ranch · Brazil · 53,000 hectares
Caiman Ecological Refuge
Where a jaguar is worth more alive than any cow it ever ate.
Caiman Ecological Refuge: the numbers, sourced
As of July 2026.
- 270+ jaguars — identified in the Caiman region since Onçafari began; 200+ on the ranch itself. Onçafari, 2011–present.
- 16% → ~100% — guest jaguar-sighting rate at Caiman. Onçafari; Mongabay, 2013–2023.
- First in the world — successful reintroduction of captive-raised jaguars to the wild — two females, now five offspring and four grand-cubs. Onçafari, 2015–present.
- ~1,500 hyacinth macaws — the Pantanal population’s low point that launched the recovery project (running since 1990). Instituto Arara Azul, 1987 / 1990–present.
- 53,000 hectares — the working ranch under the refuge — about nine Manhattans. Caiman / Onçafari, current.
What was lost at Caiman Ecological Refuge?
Across the Pantanal, jaguars were shot as cattle-killers — a working ranch's rational answer to a predator that eats its margin. And in the 1980s the hyacinth macaw, the world's largest parrot, crashed to around 1,500 birds in the Pantanal, taken wholesale for the pet trade (Instituto Arara Azul).
What brought it back?
Caiman — a 53,000-hectare working cattle ranch owned by the Klink family — decided the jaguar could out-earn the cow. In 2011 Mario Haberfeld's Onçafari project began habituating wild jaguars to safari vehicles, borrowing the method from African leopard camps. In 2015 it recorded the world's first successful reintroduction of captive-raised jaguars to the wild — two females whose line now runs to five offspring and four grand-cubs. The Hyacinth Macaw Project, run by Neiva Guedes' Instituto Arara Azul since 1990, made the same bet for the macaws.
What is it like now?
More than 270 jaguars have been identified in the region since 2011, over 200 on Caiman itself (Onçafari). Guest sighting rates rose from 16% in 2013 to near-certainty by 2023 — a jaguar seen on essentially every stay. The cattle still graze; the ranch still works; the jaguar pays better.
Who does the work?
The Klink family own and run the ranch; Onçafari's biologists and vets run the jaguar work; Instituto Arara Azul's field teams monitor the macaw nests. Roughly 500 local people share in the operation across ranch, lodge and projects (Caiman / Onçafari).
How do you visit Caiman Ecological Refuge?
Stay at Caiman's lodges and ride out with the Onçafari trackers — the safari revenue is what makes the jaguar the ranch's best asset. Dry season (May–October) stacks the odds.
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