Archive for October 2009

Animals You May Have Missed: Woodpeckers

Posted by in Animal Information,Fun on grounds

The Houston Zoo is home to a lot of animals, and some of them are often overlooked.  This series of blog entries is focused on the animals that you may have missed on your last visit.

Male Greater Yellow-naped Woodpecker

Male Greater Yellow-naped Woodpecker

The heart of the Tropical Bird House is a lush rainforest aviary, home to a varied cast of tropical birds from around the world.  Over the sound of rushing water, this large room is filled with burbling trills, shrill notes, whistles, and the odd nasal call of the Go-Away Bird.  This is not a find-the-bird-and-go exhibit; the residents of this exhibit reveal themselves slowly as they go about flying, calling, and feeding with little regard for the careful visitor.  The longer you linger at this exhibit, the more you will see, hopefully including one of the harder to find birds: the Greater Yellow-naped Woodpecker.

There is a pair of this Asian species in the aviary, one male and one female.  Like other woodpeckers, they are cavity nesters, and they often excavate parts of their exhibit.  While they are not in the same group of woodpeckers, the Greater Yellow-naped Woodpecker behaves very similarly to our native Northern Flicker.  Both are insect eaters, and often feed on the ground.

Woodpeckers are easily distinguished from other birds.  They have stiff tail feathers and zygodactyl feet which help them to hold on to vertical surfaces, like the trunk of a tree.  They have a strong beak for dislodging large amounts of wood at once and a sticky tongue to help them catch their insect prey.  The Greater Yellow-naped Woodpeckers have a stiff crest on their head, and their greenish-yellow bodies blend in well with their surroundings.

Our female woodpecker having a bug snack

Our female woodpecker having a bug snack

If you want to find the woodpeckers at the Houston Zoo, spend some time in the aviary.  Consider checking out the list of Meet the Keeper Talks, to see if there is a feeding in the Tropical Bird House – when keepers toss out insects, the woodpeckers often come down to get some tasty bugs.

Of course, no animal is guaranteed to be visible on every visit.  Even if you know where to look, you might still miss the animal if it is off exhibit or hiding especially well when you visit.  But there are so many birds to discover and experience in the Tropical Bird House aviary, it is always worth spending a few minutes of your visit simply taking it all in.

Texas City

Posted by in Classes/Programs

Attwater's Prairie Chicken

Attwater's Prairie Chicken

The Texas City Prairie Preserve, owned by the Nature Conservancy, is dedicated primarily to saving the endangered coastal prairie and the Attwater’s prairie chicken.  Over 2,000 acres have been set aside for this goal.  Volunteers work to remove invasive plants and captive-bred prairie chickens are reintroduced on the preserve.  Some of those introduced birds were hatched by the Houston Zoo

There is a small section of the property, however, that is not used for the prairie chickens.  Instead, it is a living classroom, set up to help educate the students of the Houston area about this dwindling habitat.  Every other week during the school year, staff from our education department meets a group of students to introduce them to the coastal prairie and to give them a taste of field research.

The TCPP adventure includes marine seining, water quality testing, bird and plant ID, and insect sweeping.  Or, as the students probably remember it, wading through the water with nets to sample the aquatic life, running chemical tests on the water, and looking at the life on land.  It usually takes at least 3 education staff members or volunteers, and today is one of my days to go.  I like to do the land activities the best (can’t pass up a chance to inspire new birders!) but I am also comfortable doing the water quality testing, too.  It should be a fun, full day.  I just hope it doesn’t rain.

Animals You May Have Missed: Rat Snake

Posted by in Animal Information,Fun on grounds

The Houston Zoo is home to a lot of animals, and some of them are often overlooked.  This series of blog entries is focused on the animals that you may have missed on your last visit.

The prairie dogs in the Children’s Zoo are popular, especially with kids who love to crawl through the underground tubes to pop up in the middle of the exhibit.  On the other side of the cave from those tubes are several small animals from the prairie, including the Great Plains rat snake.

Great Plains Rat Snake in the Children's Zoo

Great Plains Rat Snake in the Children's Zoo

The common name of this snake can tell us a lot about the animal.  As the name implies, this snake eats rats and other rodents, which it kills using constriction.  When scared, these snakes will rapidly shake the end of their tail in dry leaves or grass, producing a “rattle” sound similar to a rattlesnake.  But don’t be fooled by this little trick; like all the rat snakes native to North America, this constrictor has no venom.

The other half of the common name gives us an idea of where the snake is found.  They are native to the central and southern Great Plains states, including central and western Texas, and they prefer grasslands or lightly wooded habitats.  When they live in an area with high daytime temperatures, they tend to be nocturnal, avoiding the heat of the day in burrows made by other animals. 

If you want to see our Great Plains rat snake up close, head from the pelican exhibit into the “cave” behind the prairie dogs and check out the first terrarium exhibit on the right.  This snake is usually curled up near or against the glass, making it easy to see the patterns of its skin.   

Of course, no animal is guaranteed to be visible on every visit.  Even if you know where to look, you might still miss the animal if it is off exhibit or hiding especially well when you visit.  There are several terrariums in this area, though, so you will usually see something interesting nearby!

When the Animals Don’t Show Up

Posted by in Classes/Programs,Fun on grounds,Public Programs

Meet the Keeper Talks, Safari School, Wild Wheels, or Summer Camp, many of our programs depend on the animals exhibited at the zoo.  After all, what would a class at the zoo be without animals?  Most of the time, the animals are visible, the participants are happy, and the programs go well.  Occasionally, the animal will even be eating, moving, making noise, or just really close to us, and those moments always make the classes extra-special.

But every once in a while, the animal decides not to show up.  Maybe it has a vet appointment, or the weather is too cold, or the keepers need to do maintenance on the exhibit.   Maybe the animal just feels like hiding in the back corner and taking a nap.  Whatever the cause, it is then up to the presenter to make it work.

Giant Eland at the Houston Zoo

Giant Eland at the Houston Zoo

This was the case for my Wild Wheels yesterday.  The cassowary was our first stop, and he had come to the front just long enough for everyone to see him.  But then we got to the giant eland exhibit.  There were zebras and nyala antelope, but no giant eland.  At that point I realized that I should have stuck some zebra stuff in my cart (the zebra are almost always out) but I hadn’t and now I had to talk about eland with no eland to see.

Fortunately, I always bring a picture of every animal I plan to visit on our tour with me.  This is mostly for the littlest ones, who often have a hard time noticing an animal if it isn’t moving.  I said something along the lines of “Uh-oh, it looks like the eland are still inside” and showed the kids the picture of the eland.  I wanted to include these animals mostly because this was the stop with the best biofact: horns!  Everyone looked at the picture, felt the horns, and learned that eland are the biggest antelope in the world. Then we moved on, hoping for better luck at our next exhibit.

Against all odds, we did have luck.  The next stop was the one I was the most concerned about: the giant anteater.  Our anteaters are often not visible at all, or are moving around, barely visible, at the back of their very large exhibit.  Yesterday, though, one of our anteaters was right up at the front, enjoying a snack from an enrichment tube on the front fence.  We got to see her giant claws, her long but very narrow mouth, and the tiny nose on the end of her elongated face.  We watched her for quite a while before we moved on to a few more exhibits. After that up-close adventure, the sleeping grizzlies and placid Komodo dragon were a bit anticlimactic. 

When the animals don’t participate, it is still possible to have a teachable moment.  Depending on the group, I have used these moments to teach about animal care or to describe natural behaviors such as sleeping or hiding.  I’ve subbed in pictures or puppets for the actual animal, and for summer camp I’ve taken my class to an exhibit as many as 3 times on different days to try to find an animal.  As unpredictable as live animals can be, I wouldn’t want to leave them out of a program or stop teaching at the zoo.  Unlike a museum exhibit or a handling animal, our exhibit animals provide us with both the possibility of seeing nothing and the opportunity to see something amazing.

Animals You May Have Missed: King Vulture

Posted by in Animal Information,Fun on grounds

The Houston Zoo is home to a lot of animals, and some of them are often overlooked.  This series of blog entries is focused on the animals that you may have missed on your last visit.

King Vulture at the Houston Zoo

King Vulture at the Houston Zoo

In a large exhibit tucked into a corner of the Fischer Bird Garden is a bird that is unique among its relatives.  King Vultures are very similar to other vultures in many respects.  They have a naked head to help them keep clean when they tear into a carcass, they go to the bathroom down their legs to cool off, and along with other New World vultures, they are more closely related to storks then to hawks and eagles.

Unlike their relatives, however, the King Vultures have brightly colored skin on their faces and necks.  It takes several years for a vulture to get these colors; juveniles are slate gray with pale skin until they start to look like the adults at age 3, and gradually gain their full adult plumage by age 5 or 6.  Also unusual among their relatives is their poor sense of smell.  King Vultures have to follow other, smaller vultures to carcasses, and then they often act like bullies, chasing the smaller birds off. 

This behavior is one possible source for the bird’s common name of “king;” the other is Mayan legend, which portrays the bird as a king that carries messages between humans and the gods.  As a rainforest bird found through Central and South America, the Mayan people probably saw them frequently, and the symbol of the bird was a glyph used in Mayan writing.

We have one female King Vulture at the Houston Zoo.  If you want to find her on your next visit, turn left as soon as you walk into the Fischer Bird Garden.  That first large exhibit is hers, and she usually prefers to spend her time on the left side of it.

Of course, no animal is guaranteed to be visible on every visit.  Even if you know where to look, you might still miss the animal if it is off exhibit or hiding especially well when you visit.  Our King Vulture often has access to the back part of her exhibit.  But this amazing bird, with her rainbow of colors, is hard to miss when she is out!

Hold the palm please

Posted by in Animal Information

Cheyenne is a 37-year-old Sumatran Orangutan that loves popsicles and painting.

Cheyenne is a 37-year-old Sumatran Orangutan that loves popsicles and painting.

Imagine every day a little piece of your home was taken away.  A giant bulldozer comes in and plows through your living room one day, your bedroom the next and before you know it all you’re left with is a barren and empty space.

 

This is how it is for the orangutans in Borneo.  Orangutans have fallen victim to the palm oil industry which has converted much of their natural habitat to oil palm plantations.  Their natural habitats have become very favorable for the industry because of their fertile soil that is usually located near rivers.  It is estimated that over 25, 000 square kilometers of orangutans’ natural habitat has been taken over by the palm oil industry.  Palm oil is used in many of today’s every day items such as cooking oil, bath soap and lotions, cosmetics, as well as foods like cookies and crackers. 

 

It came as a complete shock to me when I started volunteering at the Zoo that this was such a major situation that needs more attention and call to action.  To help raise awareness and promote conservation efforts, the Houston Zoo has teamed up with various organizations which include the French non-governmental organization Hutan, the Sabah Wildlife Department, and several other zoological parks here in the United States , all of which support conservation programs in and around the 27,000-hectare Lower Kinabatangan Wildlife Sanctuary. And personally, I have now made it a habit to be sure to check the labels of products to see if they contain palm oil before I purchase them. 

 

Indah, a 5-year-old Sumatran Orangutan here at the Houston Zoo.

Indah, a 5-year-old Sumatran Orangutan here at the Houston Zoo.

What can you do to help? You can start by avoiding purchasing products that contain palm oil.  When you’re at the store, check the labels of your favorite foods and body products to make sure that it is palm oil free.  You can also spread the word to your friends and family and make them aware of this because the more people that know, the more orangutans we can save.  Another thing you can do is join an organization that helps to support the conservation of orangutans and their natural habitats.  Together, we can help save the last great ape of Asia.

Home School

Posted by in Classes/Programs

Madagascar Hissing Cockroaches

Madagascar Hissing Cockroaches

Yesterday I taught the first of this year’s home school classes  at the zoo.  This year we are studying Mysteries of the Natural World.  This week’s class is Mysteries of the Jungle, which deals with rainforests and the animals that call them home.  We fed hissing cockroaches, looked at tropical birds, and sorted out rainforest animals by their jobs.

According to the Texas Home School Coalition, there are an estimated 75,000 to 100,000 home schooling families in Texas. We already provide a myriad of programs for public and private schools, including field trips and ZooMobiles.  So last year we began offering home school programs, as well.  Our second annual Home School Day was a success, even with dismal weather, and the first class yesterday went very well. 

We split the class into two sections, so that we could have smaller class sizes without restricting the number of participants.  There were six kids in my section.  I was pleased that even with a variety of ages, two siblings, and a few kids who knew each other, they worked together well and became a cohesive group during class.  I was especially impressed with the three girls in my group; during our sorting activity, the two older girls made it a point to include the youngest, and she contributed quite a bit to their team.

The same class is offered three times, on Tuesday, Thursday, and the following Wednesday, so I get to teach Mysteries of the Jungle twice more.  I hope my other groups are as interested and attentive as this one!

Animals You May Have Missed: Dorcas Gazelle

Posted by in Animal Information,Fun on grounds

The Houston Zoo is home to a lot of animals, and some of them are often overlooked.  This series of blog entries is focused on the animals that you may have missed on your last visit.

Dorcas Gazelle at the Houston Zoo

Dorcas Gazelle at the Houston Zoo

In our largest hoofstock exhibit at the zoo we have giant eland, zebras, and warthogs.  Also in this yard is a dorcas gazelle.  As the smallest of the gazelle species, he often gets missed amongst the giants of the yard.

These desert gazelles are well-adapted to their dry, hot home.  In the wild, they can go their entire lives without ever taking a drink of water.  They get all the moisture they need from the plants they eat.  They are found in the Middle East, North Africa, and even the Sahara Desert.  Like many animals that survive where the temperatures are extreme, dorcas gazelles are crepuscular, saving their activity for the twilight of dusk and dawn when the temperatures are milder. 

While they are usually quiet, gazelles do make a few interesting noises; they bark in warning to each other, and growl when they are annoyed.  They also bounce with their head high to both avoid predators and warn the other members of the herd.

Our male is usually found on the side of the exhibit closest to the nyala antelope, and sometimes gets mistaken for a baby animal.  But don’t be fooled; he was born in 1994, which makes him very old for a gazelle.

Of course, no animal is guaranteed to be visible on every visit.  Even if you know where to look, you might still miss the animal if it is off exhibit or hiding especially well when you visit.  Just don’t miss him amongst the other, larger hoofed animals in the yard!