The two oldest individuals as I did take photographs off my mobile (the quality of pictures is not the best given it is an old Samsung ..., as I am not in the habit of changing a phone every other year ... I am not what you call a consumerist XXXXX with extreme unsustainable practice nor complete tunnelvision!.I don't remember their names but one is their breeding male and the other is their oldest female so pretty easy to differentiate. There are individual ID cards at the zoo too with their names and photos.
~Thylo
The Koelner Zoo - Zoo Koeln orang utans are:
1.0 Bornie status unknown ( not included in photographic material)
0.1 Cori b. 26.12.1989 Krefeld ? x ? / Arrival: ??.12.2009
1.0 Budi b. 20.01.2007 Usti - ? x ? / Arrival: 29.09.2015
0.1 Cinta b. 24.04.2012 Koeln - Bornie x Cajunga
0.1 Ciri b. 04.02.2014 Koeln - Bornie x Cori
0.1 Cabu b. 26.11.2018 Koeln - Budi x Cajunga
Now take your pick and really where the assessment of the wurmbii denomination subspecies is based upon ... is a complete mystery to me. I am open to feedback with back up data and sources, if you must!!!