Making a difference: Helping save the world's rarest parrot

David Whyte's picture

A case study about the benefits of cooperative education from a student's perspective.

 

The Cooperative Education experience for Calum

Imagine spending your summer holiday on a pristine island, untouched by human civilization helping one of the worlds most endangered birds in its fight for survival. This was the reality for Calum Ninnes, a second year Biology BSc(Tech) student from The University of Waikato.

Calum spent his summer on Codfish Island also known as Whenua Hou, helping out the National Kakapo Team in their quest to help understand the kakapo’s breeding behaviour, and to help facilitate their recovery.

The Kakapo are unique to New Zealand, with a total of only 90 birds in existence. These are spread out among off shore islands to maximize their chance of survival, in case a disaster should occur in any one particular location.
 
It is  a nocturnal parrot, (kaka, meaning parrot and po meaning night) and flightless.  With a body weight of up to 3.5kg, it is also the heaviest parrot in the world.
 
Codfish island is home to about half the remaining kakapo population, and these are intensely managed to try and maximize the breeding success.   
 
Codfish Island is located just west of Stewart Island, and is small, about 14 km2. To put that number in perspective Waiheke Island is much bigger being 92 km2 and Lake Rotorua is about half the size of Codfish Island, at 7.8 km2
  
Calum stayed in a hut on the island for 10 weeks (top right of the photo).  In that time he helped the National Kakapo Team with their summer tasks, including;
 
Supplementary Feedout
An important part of nurturing of the kakapo is supplementary feeding via feed stations which resemble modified bait stations.  This supplementary feeding is undertaken for two reasons: firstly, to make sure that the birds are in optimal condition to maximize breeding success, and secondly, the kakapo breeding is initiated by yet unknown triggers.  It is hypothesized that a possible trigger is the availability, or consumption of a specific, or perhaps different food source(s). Therefore different types of food can be supplied with the supplementary feed, thus trailing the effects of each food source.  
 
Telemetry
Another key area of work involves tracking the locations of the kakapo.  Each parrot wears a radio transmitter that emits a signal at a specific frequency.  Using directional antenna and a receiver, the parrot's location is detected by the strength of the signal.  Using directional antenna and receiver, the "bearing" from which the signal is the strongest can be found.  Doing this from three positions (known as triangulation) gives the approximate position of the kakapo.  It is only approximate due to the margin of errors in the process.  
 
The frequency of the monitoring depends upon the bird's breeding behaviour.  At the start of the breeding season it was conducted once a month.  However, this increased to once every 6 days for the females as the season progressed.  When mating signs appeared in January, monitoring was increased again to every three days. The aim was to identify the nest as soon as possible after laying.  
 
Track and bowl system monitoring
kakapo have a unique breeding system, they are the only parrots in the world to have what is called a lek breeding system
 
Track and Bowl systems are 'built' by the adult male kakapo as part of their mating rituals. The bird establishes a small territory which is used exclusively for sexual displays. This territory is marked out by tracks, which connect up one or several depressions, called bowls. The males make their mating calls, loud booming sounds,  from the bowls. An audio clip of the boom is found here
 
To determine which males were actively seeking mates, the bowl sites were monitored both with manual and electronic monitoring. The manual monitoring involved placing small sticks or twigs in the bowl. As kakapo keep their bowls meticulously clean, they will remove the sticks before booming. The electronic tracking uses voice activated recordings from a hidden electronic recorder close by.    
 
Night work
As the kakapo are nocturnal, Calum's stay involved night work to observe the birds. This work including weighing some of the birds to make sure that they were obtaining enough food.  If they were not, this information could be used to adjust the food in the supplementary feed-outs. Night work was also used to confirm which males were calling/booming.
 
Infra-red cameras were used to monitor the females on their nests. This information was used to make sure the mothers were healthy and free from mites.  It also determined how long the mothers would typically leave the nests.     
 
 
 
Not just kakapo work
The work was however not limited to just the kakapo.  Codfish Island is a vibrant oasis of bird life and Calum learned to identify over a dozen species of birds by sight and sound.  He also learnt about the biology of the NZ fur seal/Kekeno which lives on the island, and also the biology of the southern short tailed bat .    
 
 
Calum helped out with inspections of yellow-eyed penguins/hoiho. There was high mortality among yellow-eyed penguin chicks on the Otago coast that correlated with a high level of a bacterial infection called Corynebacterium.  Therefore, health checks for the Codfish Island penguins became important and involved taking swabs from the penguins' mouths. This is an intensive job, involving four people. One person holds the head in the right direction, and another holds the very strong flippers onto the penguins body so as not to hurt anyone.  A third person holds the strong, sharp beak open.  The fourth person takes a swab from inside its mouth.  The news was good; none of the penguins tested positive for the sickness-causing bacteria. (note the picture of penguins to the left is actually fiordland crested penguins)   
   

Benefits for Calum

Calum stated at the end of his ten weeks work on Codfish Island, “The 10 weeks volunteer work that I did on Whenua Hou [Codfish Island] was a very valuable and rewarding experience for me.”  He identified a significant number of benefits, and these have been grouped into the following three categories:

                                                        

Personal benefits   

Calum was able to experience the reality of working with a small team, in primitive conditions, over a significant period of time. This is an important experience because so much of New Zealand’s conservation work is undertaken in this demanding and physically stressful way. Hence, it was important for Calum to find out early in his degree if this was the career path he wanted to go down.  He was able to say.

"I also learned during my time on the island that I could cope with the physical stress and intimate social environment that the island presents without any problems, and even come to appreciate it and miss it."

Furthermore, it helped in his decisions for his future career path. This is important as it allows the students to make wise decisions about future study options. The great news for Calum was that he found that he did enjoy working with endangered species, and he has this to say: 

"This work experience has confirmed and reinforced my desire to aim for a career in ecology, as I am passionate about the environment, and consequently understanding and protecting it." 

Calum also was able to learn, though hands on experience, about the benefits that nature reserves provide for the endemic New Zealand ecology, stating:  

"I have also gained appreciation for the tremendous value that a nature reserve such as Whenua Hou [Codfish Island] has in providing a refuge and context to study a vast array of organisms in a largely unmodified environment."

Academic benefits

One of the academic benefits for Calum was that he was able to see how the theory he learned in the class room applied in the “real world.” It is important for students to be able to make this connection, as it demonstrates early in their academic life that what they are learning is relevant and important to their future careers. Calum stated; 

 "It was refreshing and exciting to get into the field and see in practice some of the theory that I have learned at university…. Seeing first hand the sexual display of the birds and the display territories reinforced and increased what I have learnt in the classroom about the lek breeding system"

Work related skills improvements

Because Calum was engaging in meaningful work that build upon his academic skills, he also learnt a lot of work related skills that by their very nature are difficult, if not impossible, to teach in a formal learning environment. Therefore he gained a great deal of practical knowledge, summed up in the following statement: 

"I learnt field skills and data collection methods which are an essential part of research, that complement the scientific design theory that I have learnt at university."

 Also any industry has its own nuances and systems of operation. Working for an extended period of time in that industry allows the student to pick up on these ways of operation and to more fully understand that industry. Calum learnt a lot about how the Department of Conservation operates, saying:

"I have gained insight into the logistics of how DOC manages a critically endangered species such as the kakapo."

An essential part of any job is the hands-on skills that grows through experience. For ecologists this includes the ability to handle animals properly and skillfully, to eliminate the risk of injury to the animal, and importantly reduces its stress.  Calum was able to learn these skills in handling the kakapo, penguin and titi saying;

 "I had the opportunity several times to handle kakapo, and by end of my placement felt very confident and competent in my handling skills. I also got to experience the process of penguin capture and handling, although only once, and could not say that I achieved the same competency….. which gave me the opportunity to experience handling titi and their chicks."

Alongside the handing of animals was the ability to identify animals in the ecosystem. Calum stated “Through my observations on the island and dialogue with other people there, I increased my knowledge of birds dramatically.  By the time I left I could confidently identify by sight, and most by ear, the following birds….” Then Calum goes on to list 16 birds. This is a very helpful skill of someone who wants to work in the field of ecology in New Zealand. 

Calum was working closely with other research people and teams and was able to learn from world leaders in the field because they were sharing the same accommodation, and working in the same space. He says:  

"I also learned about cutting edge research methods as one scientist from America was conducting research on aspects of the diving and migration behavior of the titi using sophisticated data loggers… Getting the chance to see such research occurring first hand and how exciting it is to gain new knowledge about the ecology of a species was very motivating."  

 
 
 
 
Acknowledgements:
Photograph  credits: Calum Ninnes except for, kakapo at night DOC and plane landing Vivienne Parker.
Sue McCurdy, The University of Waikato Cooperative Education
 
 
 
The plane comes down to land on the beach and take Calum off the island after an amazing summer.