Quick Updates from Kehje Sewen!


The team has been busy in the forest as always, following the daily lives of our orangutans.  During five days of nest-to-nest monitoring on Casey, the Post Release Monitoring Team recorded Casey eating a good, varied diet including many different food items; fruit, leaves, young shoots and termites. During monitoring she usually woke up at around 6 am, climbed out of her nest, descended the tree and onto the ground to look for food. Orangutans are generally supposed to forage arboreally rather than terrestrially, but Casey still often searches for food on the ground. That said, she also travels and nests in the trees and the team reported that her nest making skills have continued to improve. Having been up and about for 12 hours, Casey normally settled down in her new nest for the night at around 6 pm. 2014.06.12_19 IMG-20140612-WA0032 Casey_Masino Released in April 2012, Casey has now lived in the forest for over 2 years. She has adapted well despite the disability inflicted on her hand before she first came into our care. We are so thrilled that Casey is thriving in Kehje Sewen. 2014.06.15_1 IMG-20140615-WA0012_Casey_Kenang UPI

Upi was only released recently and two weeks ago we received concerning news from the field that she seemed lethargic, had lost weight and was eating a lot less than normal. In response to the change in Upi’s behavior the Team focused on intensively monitoring her through nest-to-nest follows and data collection for 14 days straight. 2014.06.16_8 IMG-20140616-WA0010_Upi_Guswan During the following days she regained her appetite and strength. She started eating more natural foods such as lianas, rattan shoots, termites, and figs. The Team could visually see her grow stronger and gain weight. Maybe she had eaten something that didn’t agree with her, as we have seen happen in other rehabilitated orangutans we have reintroduced or she was still struggling to find a range suitable for her. Whatever the reason, she seems to have overcome this and has improved daily. Upi was active and often moved between the trees though she, like some of our other orangutans, still also travels on the ground. Sometimes when the Team were close by, she would climb down and try to follow the observers. Having been fed and cared for by humans for many years before her reintroduction, she still likes human company. This is something we will have to overcome with Upi. 2014.06.19_5 IMG-20140619-WA0010 Upi_Awal On one occasion Upi was seen with Agus. Agus tried to approach her and copulate, but she refused his attempts. Soon after, Agus gave up and left her alone.


The Team found Agus along phenology trail 1000. As always, he doesn’t like seeing the Team and he threw branches and kiss-squeaked at them. Based on their observations, the Team reported that Agus was eating well and overall looked very healthy and well. Good job guys and we look forward to posting more news on our orangutans. 2014.06.13_6 IMG-20140613-WA0005 Agus_Masino

2014.06.17_7 -WA0007 Agus_Awal  

Text by: Bani, PRM Technician.


2 thoughts on “Quick Updates from Kehje Sewen!

  1. It’s wonderful to hear about how the released orangutans are acclimating, adjusting, and enjoying life in freedom in the forest!

    Casey – Congratulations on now 2 years in your home in Kehje Sewen forest! I pray there will be many, Many happy, healthy, Safe years for you at Kehje Sewen! 🙂

    Upi – First & most important: I pray that you are healthy & Fully recovered from the condition that was bothering you earlier. I also hope that the rangers will continue to keep a close eye on you & regularly check in on you to make sure that you are indeed 100% recovered! Hang in there sweetie! It sounds like you’re adjusting well to your new home & new like living freely in the forest! Congratulations!!! But maybe you miss your human caregivers and friends from before you moved to Kehje Sewen? Alas, this is part of growing up and you will learn to be more dependent. Do remember to be wary of All humans!… There are Many evil, deadly human poachers and palm oil workers out there who Will hurt you if they can get their hands on you!! So always better to be safe than sorry and keep your guards up and keep your distance from humans! Of course, I pray that you’ll Never come in contact with any of those ill-intentioned, deadly humans that I mentioned!

    Agus – You are very handsome and I’m so happy to hear that you are doing well (& keeping distant from humans!) 🙂 Good luck courting Upi and the other attractive females out there!;) Hopefully, you’ll father a son and daughter soon!!

    Praying for Casey, Upi, Agus, and All orangutans on Earth to live Long, Happy, Healthy, SAFE life!

  2. To the trackers and rangers who continue to monitor the released orangutans,

    Will you continue to keep a close eye on Upi, checking up on her frequently?

    Just in case that whatever the condition was that was bothering her isn’t fully gone and she falls sick again… I pray and hope this is not the case!!!

    (I read today of a gorilla who died of melanoma and the rangers had noticed the lump/tumor 2 years prior to this gorilla’s death but did not intervene to even diagnose what the lump was until only a short time before her death. Our great apes are so precious–there are so dangerously few of them left in the world–that I hope all their caregivers, rangers, and monitor-ers will catch any problems they have as soon as possible to give them the best chance of survival!

    Thank you to the monitoring team for keeping the last wild orangutans wild and safe!!

    Long live All orangutans, forests, and the monitoring+rescue+rehabilitation teams!!!

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