Posts Tagged ‘animal keepers’

My Tortoise Is Smarter Than Yours!

by | July 12th, 2010

Summer is a busy time at the Oakland Zoo and the Wayne and Gladys Valley Children’s Zoo is no exception! You may have noticed the number of Aldabra Tortoises shrinks every summer and returns every winter. At the beginning of every summer, we move the male tortoises to a large grassy holding area for a few months for two reasons. First, the turf just needs a break! Grass is the primary diet for these guys and they graze it down to almost nothing, so in the summer we give the lawn a break to fertilize and reseed. Second, there is a theory in the reptile world that “absence makes the heart grow fonder” and many herpetologists believe that separating males and females for a few months increases the chances of them breeding when they finally get back together.

Great idea, but….how do you move a 500 pound tortoise? I have to admit that this is not one of my favorite jobs. First you have to get them out of their favorite mud wallow, not an easy task. By the time we finally get them out of the mud, we keepers usually look like the swamp monster! Then, we have to carry the slippery tortoise across the yard, out the gate and load them into a truck. It takes at least six people to lift a tortoise onto the back of the pick-up truck and it’s not like they sit still once they are there. Five keepers then have to sit on the back of the moving truck with him and try to keep him from climbing out, and believe me they are even stronger than they look!

Keepers Adam Fink and Ashley Terry leading Gus out of his mud wallow.

Adam Fink targets Gus across the yard whil volunteer Taylor Vanden Broek.

Adam Fink leads Gus across the yard.

For the last year, the keepers have been working on a training program with the tortoises using the same positive reinforcement techniques that we use with many of the other zoo animals. It’s pretty simple; the tortoises have a 10 inch square of plywood each painted with their own color called their “target.” When they touch the target, they get a piece of carrot. Who would have guessed that such a simple behavior would be so powerful!

Gus allows Ashley Terry to rinse off the mud.

This year, when it was time to move Gus, he was happily settled into his giant mud wallow with his two favorite girls. I must admit, I groaned a bit at the prospect of having to extract him. But, the power of positive reinforcement prevailed! As soon as Gus saw his red target, he got up and followed the keepers out of the mud wallow and all the way across the yard to the gate of his own free will! He even let us rinse the mud off him with the hose! Granted we still had to lift him into the truck, but it was a lot easier on our backs because he was so much closer! And, we did still get a bit muddy, but at least we were still recognizable as keepers, not the swamp monster. The best part is that Gus CHOSE to move! We didn’t force him; he cooperated with his keepers based on his relationship with them and the positive reinforcement. In fact, we are continuing to use these techniques to train other behaviors such as weighing, nail trims and blood draws. Training tortoises is truly progressive animal management, which is something the Oakland Zoo excels at! And, Gus is just as happy in his summer home as he is in his winter home!

Ashley Terry, Jen Jelincic and Taylor Vanden Broek help Gus into the truck.

Here Comes the Train

by | May 11th, 2010

By now, many of you may have come to the Oakland Zoo to experience our newest Australia exhibit. It is almost complete, with more finishing touches on the way; the Grand Opening is July 3rd.   For those of you have not seen it yet, it is our brand new Emu and Wallaroo exhibit that is located on a lush 3.5 acres at the top of the zoo that is accessible by our train.  The train has undergone many facelifts over its history here at the zoo, but this is the first time that the train has immersed guests within an animal habitat, creating an experience unlike any other at the park.   It is not uncommon to see the Wallaroo lounging in the grass a few feet away and Emu roaming by as you  glide through on the Outback Express train.

Wallaroo by Tracks. Photo by Lorraine Peters

Roaming the Hills. Photo by Lorraine Peters

To help you experience Wild Australia a core group of dedicated and specially trained drivers have been recruited.

Shauna, Javier, Ken and RJ make up our train driver core and were hand selected to run the Outback Express due to their enthusiasm for the Wallaroo and Emu along with their work ethic and experience in the zoos Operations department.   Once selected, they teamed up with the animal keepers in charge of the Emu and Wallaroo to take place in a pilot train driving certification course. This pilot program was designed to prepare the drivers for the challenges of working in an active animal habitat and features three main components, evaluated by the animal management department.

The first stage of the program is centered on general preparation and includes research on  identifying individual animals, natural history of the emu and wallaroo, along with learning about how deal with animals in distress.

The second stage of the program is centered on driving the train through Wild Australia and centers around how to handle certain scenarios while driving the train.   Common occurrences the drivers must face are emu or wallaroo on the tracks or in close proximity to the train as well as moving at appropriate speeds within the exhibit to make the keepers and animals feel secure.

The third stage actually takes place off of the train and instructs the drivers in an interactive format on common daily and seasonal behaviors they can encounter with the emu and wallaroo.  This is also the time where drivers are shown how to interact with the animals appropriately if it becomes necessary to get off the train and move an animal off the tracks or away from an entrance gate.

So far the certification program has been going well and our drivers along with the emus and wallaroos have been doing great traversing their new stomping grounds.   Next time you are on the train make sure to let the train drivers know what a great job they are doing.

The OZ Train Drivers. From Right to Left (Ken, Shauna, Javier, and RJ)