Sheila is a female orangutan who was reintroduced to the Lamandau Wildlife Reserve in 2004 and is now one our regular visitors to Camp Gemini within the forest. Her story is one that mirrors many orangutans that have been translocated to the safety of this Reserve, and one that shows how suited this environment is for a healthy population of orangutans.
Sheila and her third offspring Sony forage for food in the trees.
Our field team have monitored Sheila’s progress since her arrival into the forest at around five years of age and recorded all of the major events in her life. From the unfortunate passing of her one-year-old son Shola in 2007, to the births of her daughter Sakura in 2008 and son Sony in 2014. Sakura is now at an age where she can roam independently in the forest, but young Sony is still spotted at camp shadowing his mother from time to time.
Sakura (left) is now an adolescent exploring the forest independently, while Sony (right) is becoming more self-reliant but still stays in close proximity to his mother.
While all three orangutans live entirely in the wild, they are observed by our team when they come near to camp to ensure that they remain in good health. In recent months however, Orangutan Foundation staff saw that Sheila’s throat sack had grown bigger, an unusual occurrence for female orangutans. Males commonly have larger throat sacks, acting as echo-chambers as they produce their resonating long-call through the forest, but typically females do not.
Following some deliberation it was the decision of our vet Dr Dimas that the best course of action would be to observe Sheila more closely and anesthetise her so that her throat could be suitably checked. One afternoon with Sony playing in a nearby tree, our team were able to carefully sedate Sheila and begin their examination.
Generally Sheila appeared to be in good health, however a syringe would need to be inserted into her throat sack to check whether it contained excess air or fluid which may need releasing. In reality though, it turned out to be neither of these things. Instead it was discovered that Sheila had an extra layer of fat which fortunately is not suspected to be harmful to her wellbeing. Dr Dimas was happy to give Sheila a supplementary vitamin injection and clean bill of health to go back into the forest.
Her progress will continue to be monitored, but it is tremendously reassuring for our team to know that orangutans like Sheila in this forest are prospering in a protected natural habitat.
