Posts Tagged ‘overlooked animals’

Animals You May Have Missed: Cranes and Tortoises

Posted by Leigh in Animal Information,Fun on grounds

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

On September 27, in the entry about our ground hornbills, I mentioned that the okapi at our zoo live in multi-species exhibits.  This final entry in the series is also about some of the okapis’ roommates: the Blue Cranes and the Sulcata Tortoises.

Blue Crane at the Houston Zoo

Blue Crane at the Houston Zoo

Like all cranes, Blue Cranes put on quite a show during their annual courtship.  They sing duets (although their grating calls are pushing the definition of “singing”) and they perform elaborate dances that involve leaps, twirls, and sometimes even props of sticks and leaves.  They are omnivores, eating grains, seeds, insects and other invertebrates.  As one of only two cranes in the world that do not have a bare, red patch of skin somewhere on their face, the Blue Cranes have a softer look than their relatives.  They have long, dangling feathers that nearly touch the ground; these feathers are not part of the tail, as it appears when they are standing, but are actually wing feathers. 

Blue Cranes are the national bird of South Africa; as a species endemic to the southern portion of the continent, nearly all of the population is found in South Africa.  This is not a recent opinion, either.  These cranes were revered by the Zulu; only their royalty were allowed to wear the feathers of the Blue Crane.  We have two, a male and a female, that are currently on exhibit in the first okapi yard.

Sulcata tortoises are not from South Africa; instead, they are native to the arid habitats of northern Africa.  They are herbivores, like most tortoises, and like all turtles they have a hard beak instead of teeth.  You may notice that our three tortoises tend to look dirty, often covered with mud or dirt.  This species likes to make burrows, even shallow ones, in order to bury themselves underground and stay cool in the desert heat.

Sulcata Tortoise at the Houston Zoo

Sulcata Tortoise at the Houston Zoo

Sulcatas are the largest tortoise species found on the African mainland.  Large tortoises like this do not make good pets, due to their size and their habitat needs.  Houston is not a desert, and these tortoises can get quite ill if they get too wet or too cold.  Unfortunately, some people do breed them and sell them for pets.  Remember that we have the resources at the zoo to care for an animal like this, but most pet owners do not.  If you are considering a large tortoise species for a pet, please read this article first – the author does an excellent job of outlining all the ways that large tortoises are challenging, if not impossible, to keep as pets.  If you need to see for yourself how big these tortoises can get, simply find them in our okapi exhibit!

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.    Hopefully you have enjoyed this chance to get to know a few of the animals you may have missed, and maybe you will see some of them on your next visit to the Houston Zoo!

Animals You May Have Missed: Acouchi

Posted by Leigh 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.

When people approach the indoor rainforest exhibit in Natural Encounters, the first things that draw their attention are the vines and branches at eye level and above.  Often, this is also the area of highest activity – several small primate species, birds, and even a sloth can be seen in these branches.  But if you take the time to look down instead of up, you may catch an intriguing resident of this exhibit: the acouchi.

Acouchi in Natural Encounters

Acouchi in Natural Encounters

Acouchis are rodents from South America.  They are found primarily on the forest floor, as their feet are not suited for climbing.  These little animals are important to the health of the rainforest – they eat fruit, and will even break into a run when they hear fruit hit the ground.  When fruit is abundant, they bury it underground like their cousin, the squirrel.  And just like a squirrel, an acouchi does not find all of the fruit it buried.  This works to plant seeds and spread them around the forest, helping the next generation of rainforest giants to grow.

Our acouchi is usually in the right half of the exhibit.  If you can’t find him on the ground, check the rockwork in the back.  The exhibit is designed to allow ground-dwelling animals to move up and down.  As a prey animal, the acouchi likes to be somewhat hidden, so you may find him hiding under the bridge or near the potted plants.

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.  Unlike his arboreal roommates, the acouchi does not alternate between exhibits; he is always in the indoor rainforest.

Animals You May Have Missed: Woodpeckers

Posted by Leigh 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.

Animals You May Have Missed: Rat Snake

Posted by Leigh 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!

Animals You May Have Missed: King Vulture

Posted by Leigh 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!

Animals You May Have Missed: Dorcas Gazelle

Posted by Leigh 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!

Animals You May Have Missed: Ground Hornbills

Posted by Leigh 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 okapi here at the Houston Zoo have proven to make good roommates – both okapi exhibits are multi-species, housing mammals, birds, even some reptiles.  In one of these exhibits live two large, black birds with prominent beaks: our Southern Ground Hornbills.

Male Southern Ground Hornbill

Male Southern Ground Hornbill

The Ground Hornbills have large, powerful beaks typical of hornbills, but unlike other hornbills, the casque on top is reduced.  Like many of their relatives, these birds have brightly colored skin on their faces and throats; the male’s skin is bright red, and the female is red with blue patches.  As the largest of the hornbills, these birds are primarily terrestrial, spending most of their time on the ground.  This is source of the “ground” in ground hornbill.

Southern Ground Hornbills are omnivorous, using their large beaks to catch insects, open fruit, and sift through dirt and plant material.  They have even been seen bashing holes into turtle shells.  Adults will carry multiple food items in their beak at once to feed a nest of hungry chicks.

They are found in Africa, in the southern and eastern parts of the continent.  You don’t have to travel to Africa to see our ground hornbills, though.  These birds live in the second okapi exhibit, if you are walking from elephants.  We have a male and a female, and if you are especially lucky, you might hear the booming call they use to communicate.

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 keep an eye out at the okapi exhibit for these impressive birds on your next trip to the Houston Zoo!

Animals You May Have Missed: Honey Pot Ants

Posted by Leigh 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.

Between the mole rats and the reef tank in Natural Encounters lives a colony of a very unique type of ant.  All ants have different levels of workers, but the honey pot ants have one special group that gives them their common name.  These workers, called repletes, are little living storage chambers for their colony.

Honey pot ant repletes in Natural Encounters

Honey pot ant repletes in Natural Encounters

In North America, our honey pot ants are in the genus Myrmecocystus.  They are only found in the desert southwest, and the ants we have on exhibit are part of this group.  There are other groups of ants native to the arid parts of Australia and Africa that have a similar adaptation.  One important problem of living in an arid region is food; during wet or rainy periods there is more than any animal can eat, but during dry times food is scarce.  Many animals store food during the wet periods, to have it available for the dry times.  Honey pot ants do the same, only they store the spare food inside living members of the colony.

Workers will feed protein, nectar, and other foods to the repletes, whose bodies distend to look like fluid-filled globes.  The repletes generally hang from the ceiling of the colony, simply waiting and being fed.  When their habitat goes dry and food is limited, the repletes will regurgitate the food they are storing and give it back to the workers who fed them, who in turn share it with the entire colony.

Because most of what the repletes store is sweet, many native peoples consider them a delicacy, and eat them as treat when they can find the colonies.  You can’t eat them, but to see our honey pot ant colony at the Houston Zoo all you need to do is follow the mole rat exhibit around the corner.   The last few chambers next to the “front porch” are the home of our honey pot ants.

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.    The honey pot ants are typically easy to see, and their underground colony is lit so you can even see the repletes, full of food, hanging from the ceiling.  Check them out on your next visit to the Houston Zoo!

Animals You May Have Missed: Geese

Posted by Leigh 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.

There are many different birds on Duck Lake, including wild ducks that come in to visit, but visitors may not realize that there are 4 different kinds of geese in this waterfowl exhibit.  The lake is home to 2 red-breasted geese, 3 bar-headed geese, 2 barnacle geese, and 13 nene (also known as Hawaiian geese).  Geese are generally larger than ducks, and tend to graze on shore rather than eating aquatic plants like most ducks.

Nene or Hawaiian Goose at Duck Lake

Nene or Hawaiian Goose at Duck Lake

The Nene is the state bird of Hawaii.  This brown goose is endemic to that state, where it lives on hardened lava flows and eats mostly succulents.  Because they have to walk and even run on uneven surfaces, these geese have especially strong feet and legs. 

A Barnacle Goose is mostly dark with a large white patch covering most of its face.  These birds are native to northern Europe, including Great Britain, and they nest in the arctic.  Because Europeans did not ever see these birds nest, there is a strange myth about where they came from.  This myth says that these geese come, not from eggs, but from barnacles.  When wood was steeped in sea water (like the sides of a ship), the barnacles grew out of the wood, eventually turning into geese.

Bar-headed Geese have black bars on the sides of their white heads.  These birds live on lakes and rivers in the highlands of Central Asia, and winter in northern India.  Like the Nene, these geese have long legs to make it easy for them to walk on land. 

Red-Breasted Geese at Duck Lake

Red-Breasted Geese at Duck Lake

The Red-breasted Goose is brightly colored, making it easy to spot among the birds of Duck Lake.  These geese breed in the Arctic Circle, like the Barnacle Geese, but are primarily found in northern Asia.  The female goose builds her nest near falcon or hawk nests, as the birds of prey naturally chase off any foxes or other land predators. 

To find these geese at the Houston Zoo, look for them on Duck Lake.  They are often walking around on the land, near the flamingo exhibit or around towards the Children’s Zoo.  Please remember that geese can be very aggressive; if they come near the fence, it is not a good idea to reach over.

Of course, no animal is guaranteed to be visible everyday.  Even if you know where to look, you might still miss the animal if it is off exhibit or hiding especially well.  Our geese on Duck Lake are often quite prominent, though, and now you can impress family and friends by pointing them out on your next visit!

Animals You May Have Missed: Swift Fox

Posted by Leigh in Animal Information,Fun on grounds

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

Swift Fox in the Children's Zoo

Swift Fox in the Children's Zoo

Tucked into the far corner of the Children’s Zoo is the Swift Fox.   It is the smallest wild dog relative found in North America.  This little fox lives in the Great Plains, from southern Canada to the southwest US, and their range includes west Texas.  They are fast, capable of running more that 30 mph, but like most predators, they prefer to do as little as possible.  They are also good climbers, often scaling the giant flower stalk of the century plants found in the southwest.

If you check out our swift foxes, don’t expect to see a lot of activity.  These animals are primarily nocturnal and spend most of their day sleeping.  Unless you see them in person, though, it is hard to tell just how small they really are.  We have 2 swift foxes, a male and a female, and one is almost always curled up asleep on the ledge at the back of the exhibit.

Swift Fox exhibit in the Children's Zoo

Swift Fox exhibit in the Children's Zoo

To find the swift foxes, head to the back of the Children’s Zoo, past the farm and the prairie dogs.  They are in the exhibit on the outside of the building with the bat cave, near the yellow pavilion.

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 now you know where the swift foxes makes their home at the Houston Zoo, and hopefully you’ll get to see one the next time you visit!