Nest-to-nest monitoring is a mandatory activity after orangutans are released. The purpose of this activity is to monitor the progress of the orangutans in their new habitat. From this activity, it can be observed whether our rehabilitation program is successful and which areas may need improvement or adjustment.
So, how are they?
UPI, ENJOYING HER NEW HOME
After more than 2 weeks living in Kehje Sewen, Upi has started to adapt very well with her new home. She started to try new forest food found in her surroundings. According to the Monitoring Team, Upi has tried various kinds of leaves, liana fruit, ficus and syzgium, among others.
She is also active, moving from one tree to another. After days of nesting on the forest floor, finally the Monitoring Team saw Upi building her first proper nest in a tree in Kehje Sewen. Although seemed slow, Upi is progressing. We are so happy.
ONENG, SLOW BUT SURE
During her first days living in Kehje Sewen, Oneng seemed confused. She was still trying to adapt with her new home. But it only lasted a few days. Soon enough, Oneng was seen actively exploring Kehje Sewen. She has also started eating natural food such as various kinds of fruits and ficus leaves. Oneng’s ability to build a nest for her to sleep at night is also improving considerably.
Oneng loves playing in high trees. She enjoys eating delicious aglaia fruit, ficus, rattan, bark, and termites. She tries more types of food as the days go by. She is also skilled in searching water sources. Oneng will run to the nearest stream and drink the water using her hands.
NILA, EXPLORING KEHJE SEWEN
Just like Oneng and Upi, Nila seemed to have enjoyed her new home. Slowly but surely, Nila has adapted well in Kehje Sewen. According to the Monitoring Team, her diet includes fruits and leaves of liana, ficus, rattan and bark. Nila has also successfully built her own nest every night.
After the first few days of getting to know her new home, Nila has now started to explore more of Kehje Sewen. She now plays high in the trees, swinging from one tree to another. We are very happy about her progress and delighted to see that Nila is also happy in her new home.
It has been a little bit difficult observing Indo. Indo dislikes the presence of the Monitoring Team. However, the Team has now learned that Indo simply needs his space.
As long as he is observed from a safe distance, not too close for comfort, he is actually fine with the team’s presence. Indo has tried many kinds of fruits such as Pterospermum and liana leaves. He is adapting and settling well in his new home.
MADURI, LEKE, KENT, AND BAJURI: LOVE QUADRILATERAL?
Maduri is very close to Leke and Kent. The Monitoring Team has seen them playing together on several occasions. Maduri loves the leaves of liana and Farella johorensis. And she seems to be enjoying her new freedom.
The team has also witnessed love blossoming between Kent and Maduri. One afternoon, the two were seen mating. But Leke seemed unhappy when she saw this. Leke got angry! Are you jealous, Leke?
Once, Leke tried to reunite with her old friends Berlian and Mona. But Berlian and Mona did not like the idea very much. They chased Leke away and finally Leke decided to split.
Both Leke and Maduri were also seen mating with Bajuri. Kent of course did not like this at all! He immediately challenged Bajuri in a fight. Bajuri, happy to have mated with the two girls, finally ran away.
HAMZAH, BERLIAN, AND MONA
While conducting nest-to-nest monitoring on the newly released orangutans, the team also ran into some of the orangutans who have been living in the forest for quiet some times, such as Hamzah, Berlian and Mona.
Hamzah, who was found when the team was observing Oneng, looked very healthy. He kiss-squeaked at the team, showing his disapproval of them being there. Berlian and Mona were also found nearby and are very healthy. Hamzah, Berlian and Mona clearly feel at home now in Kehje Sewen and have developed into truly wild orangutans!
Text by: Bani, PRM Technician.