|Feeding berries to kakapo chicks|
Our last night of kakapo training was quite exciting. A three year old bird who had been hand raised several years ago had discovered a way to enter the large enclosure where the chicks are housed as they prepare for release into the wild. We think she was attracted by the chicks and food. This wild older bird generally does what the other kakapo do and is rarely seen unless sought out by rangers for a health check.
As the three chicks were being fed, she actually tentatively approached and accepted a few food items tossed on the ground near her. She also stepped onto the perch used to weigh the chicks when prompted. This would have been the same perch used to weigh her when she was a chick. This three year old bird who gets very little interaction with people was actually an important indicator of what is possible with the hand raised chicks and their behavioral management once released into the wild.
This bird demonstrated that the pleasant experiences associated with hand rearing can have an impact that can help with future care of wild birds. By targeting the specific behaviors we want the birds to do and actively training them during hand rearing, there is a very good chance they will present those behaviors when needed in the field, yet still remain very much a wild kakapo. At this stage the chicks have learned a number of important behaviors for their health care and for making it easier to check on them when roaming in the wild. Now it is just a matter of maintaining them as they transition to the wild.
Needless to say all three kakapo chicks Lisa 1 (from the taped egg), Rakiura 2 and Heather 1 were wonderful students. They were always eager to participate. Each has their own personality. Little Heather1 is bold, always moving and almost always the first one to realize someone is in the pen. Check out this clip of Heather 1 and Rakiura 2 in a tree at sundown.
Lisa 1 is more laid back in general. He is the oldest of the three chicks. He and Heather1 have been very quick to learn behaviors that require them to think a bit about what actions they are doing that earn them desired consequences.
|Lisa 1 during a training session|
Rakiura 2 is an equally good student but excels mostly at things that require manipulating his body. He was a superstar when it came to allowing us to put on his transmitter without any restraint at all. He sat calmly through the entire 11 minute procedure. He also seems to benefit from watching Lisa 1 for behaviors in which he has to do something to earn the reinforcer.
Time for me to leave the island now (via helicopter!) and training will be up to the rangers to maintain. Fortunately the chicks still have a few more weeks to go in their pre-release pen. There will be many more opportunities to fine tune behaviors, increase the difficulty of recalls, and practice what they now know. Building this reinforcement history will make it more likely the birds will present desired behaviors in the future. Once released, the chicks will be checked frequently which also gives staff
|Rakiura 2 after eating red berries|