Showing posts with label east dallas. Show all posts
Showing posts with label east dallas. Show all posts

Tuesday, June 12, 2012

Birds in flight: The Ring-billed Gulls of White Rock Lake

If you visited White Rock Lake, Dallas in winter, you will no doubt have witnessed the raucous behavior of the ring-billed gulls (Larus delawarensis) in and around Sunset Bay. These noisy, opportunistic birds make their presence known and are often seen taking food from less fortunate waterfowl.

All of the "birds in flight" images below were taken at Sunset Bay, White Rock Lake. 

Ring-billed gull at Sunset Bay, White Rock Lake, Dallas, Texas
A soaring ring-billed gull on the lookout for some food

If you visit White Rock Lake now you will notice that Sunset Bay is a lot quieter. The gulls have gone. Ring-billed gulls are migratory and some of them spend their winters at White Rock Lake in east Dallas, Texas.

Larus delawarensis in flight over Sunset Bay, White Rock Lake, Dallas, TX
 Ring-billed gulls migrate and spend the winter at White Rock Lake

Ring-billed gulls are easily identified from the black ring near the tip of its yellow, short bill, as well as its white head and gray wings. Its legs and feet are yellow. The eyes are yellow with red rims.

Birds in flight over Sunset Bay, White Rock Lake, Dallas, Texas
 Ring-billed gulls they were hunted for their plumage
 
Ring-billed gulls breed near lakes, rivers or the coast in Canada and the northern United States.

Larus delawarensis in flight over Sunset Bay, White Rock Lake, Dallas, TX
Larus delawarensis in flight over Sunset Bay

The gulls are pretty birds and in the late 19th century, they were hunted for their plumage.

Ring-billed gulls flying across Sunset Bay, White Rock Lake, Dallas, Texas
Ring-billed gulls flying across Sunset Bay

Ring-billed gulls nest from mid-May through June and they return to their nesting site well before it is time to nest in order to establish its territory.

A Ring-billed gull in flight flying across Sunset Bay, White Rock Lake, Dallas, Texas
The black ring at the tip of the gull's beak is clearly visible

Ring-billed gulls takes three years to reach its breeding plumage.

Ring-billed gulls foraging for food at Sunset Bay, White Rock Lake, Dallas, Texas
Ring-billed gulls foraging for food at Sunset Bay

Texas is known for its clear, blue skies in winter.

A ring-billed gull - Larus delawarensis - hovering over Sunset Bay at White Rock Lake, Dallas, TX
The gulls nest from mid-May through June

Although the gulls often visit Sunset Bay to forage for food, they love to spend a lot of their day sitting in the shallow water below the spillway, waiting for morsels that have washed over the spillway wall.

Ring-billed gulls in flight over Sunset Bay, White Rock Lake, Dallas, Texas
Ring-billed gulls in flight

Ring-billed gulls nest from mid-May through June and they return to their nesting site well before it is time to nest in order to establish its territory.

And that’s why Sunset Bay is a lot quieter this time of year.

Sunday, May 27, 2012

The Feral Pigeons of White Rock Lake, Dallas


Most cities around the world have one thing in common: feral pigeons (Columba livia), also known as rock doves. White Rock Lake in east Dallas is no exception. The pigeon images below were all taken at Sunset Bay at White Rock Lake.

Pigeons arrived in North America with European settlers in the 17th-century. They were brought here as domestic birds, caged and kept as a source of food.

A feral pigeon at White Rock Lake, Dallas, Texas
A pigeon at White Rock Lake

Feral pigeons are derived from wild rock doves that were domesticated in the Middle East over 6,000 years ago. Rock doves were domesticated initially as a source of food, and for religious purposes. The terms "dove" and "pigeon" are interchangeable. Most people refer to smaller species as doves.

Pigeons are regular visitors to White Rock Lake, especially Sunset Bay.
Pigeons are regular visitors to White Rock Lake, especially Sunset Bay.

Humans soon produced variants that could be used in other ways e.g. 3,000 years ago pigeons were being bred not only for the table, but for delivering messages and for racing. By the fifth century BC, Syria and Persia had widespread networks of message-carrying pigeons.


Feral pigeons are derived from wild rock doves
Feral pigeons are derived from wild rock doves

Pigeons are regular visitors to White Rock Lake, especially Sunset Bay. The image above was captured from the pier at Sunset Bay.

The average lifespan of a pigeon is 10 to 15 years. The oldest recorded pigeon was around 33 years.

Pigeongram stamps are eagerly collected for their novelty value
 Pigeongram stamps are eagerly collected for their novelty value

We have all heard of the international news service, Reuters. Guess how they started?

In 1850, Paul Julius Reuter’s fledgling news service used homing pigeons to fly the 120km between Aachen and Brussels, thereby laying the foundations for a global news agency.

Pigeons were also used to send messages from the Great Barrier Island in New Zealand (90 kilometers northeast of Auckland) to the mainland. It was referred to as a pigeongram service. The pigeon post service began between the island and Auckland in 1897, and ended when the first telegraph cable was laid between the island and the mainland in 1908.

Feral pigeons sharing a meal with a red winged blackbird at White Rock Lake, Dallas, TX
 Feral pigeons sharing a meal with a red winged blackbird
whilst a squirrel looks on

We are all so impressed by the speed, power and efficiency of the Internet. Now consider this. As part of a PR stunt in South Africa, a pigeon carried a 4GB memory stick 80 kilometers. During the time it took the pigeon to deliver the memory stick, the country’s biggest Internet service provider only managed to transfer just 4% of the data on the memory stick. That’s amazing!

Feral pigeons at Sunset Bay, White Rock Lake, Dallas, Texas
The average lifespan of a pigeon is 10 to 15 years

Homing pigeons played a vital part in both World Wars as military messengers. In World War I, pigeons proved to be an extremely reliable way of sending messages. Over 100,000 pigeons were used in the war with an incredible success rate of 95% of the messages being delivered.  

Pigeons did such extraordinary and valuable work during WW1 that the British government protected them by law: “Killing, wounding or molesting homing pigeons is punishable under the Defense of the Realm Regulations by Six Months Imprisonment or £100 Fine. The public are reminded that homing pigeons are doing valuable work for the government, and are requested to assist in the suppression of the shooting of these birds.”

During World War II, the United Kingdom used about 250,000 homing pigeons. The American Signal Pigeon Corps consisted of 3,150 soldiers and 54,000 birds. Some 90% of the messages got to their destination. 

These avian secret agents saved innumerable human lives as well. Of the 54 Dickin Medals (the highest possible decoration for valor given to animals - the animal’s VC) awarded in World War II, 32 went to pigeons!

But don’t think the use of pigeons as a means of communication is outdated. Even today, homing pigeons are used in remote areas. In fact, the Police Pigeon Service in Orissa, India, was retired only in 2002.

A pair of feral pigeons on the pier at Sunset Bay, White Rock Lake, Dallas, Texas
A pair of pigeons on the pier at Sunset Bay, White Rock Lake

Some religious groups feed pigeons for cultural reasons. For example, Sikhs feed pigeons to honor the high priest and warrior, Guru Govind Singh. Some Sikhs also believe that when they are reincarnated they will never go hungry if they have fed pigeons in their previous life. 

Christians believe that the pigeon is both a symbol of peace and of the Holy Spirit.  

In the image below, the male pigeon is going through a courtship ritual in an attempt to woo the female in the foreground. Feral pigeons mate for life.

The male pigeon is going through a courtship ritual in an attempt to woo the female at White Rock Lake
The male pigeon is going through a courtship ritual in an attempt
to woo the female

The next time you see feral pigeons, show them some respect. They are far from being a pest, and we have so much to thank them for. These beautiful creatures were a source of food for our ancestors, they kept us informed by delivering the latest news, and these brave birds helped us win both World Wars.

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Sunday, April 15, 2012

It’s the Time of the Season When Love Runs High – at White Rock Lake

“Can words describe the fragrance of the very breath of spring?” 


How many of you remember the 1968 song by the Zombies, “Time of the Season”?

Right now, as you walk around White Rock Lake in east Dallas, you cannot help but start singing the lyrics of that song: “It's the time of the season … When the love runs high …”

Spring is the time of the year when Mother Nature pushes the “get amorous” button. In the words of the song, “It's the time of the season for loving.” And the birds, animals and insects at White Rock Lake are taking it seriously, as though their very existence depended on it.

These Variegated Fritillary butterflies were mating yesterday, flying around from plant to plant, locked in passion, on the hill above Winfrey Point at White Rock Lake.

Mating Variegated Fritillary butterflies at White Rock Lake, Dallas, TX
Mating Variegated Fritillary butterflies at White Rock Lake

Mating Milkweed Bugs at White Rock Lake, Dallas, TX
Milkweed Bugs mating yesterday near Winfrey Point, White Rock Lake

Spawning fish at White Rock Lake, Dallas, TX
These fish were spawning in Dixon Branch Creek, just before it
enters Sunset Bay

If you're interested in aeronautical acrobatics and copious amorous activity, go find yourself some dragonflies. They are always fun to watch. These two dragonflies were answering nature's call in the tiny stream that runs into the lake from the Dallas Arboretum.

Mating dragonflies at White Rock Lake, Dallas, Texas
Mating dragonflies at White Rock Lake

 Mating feral pigeons at Sunset Bay, White Rock Lake

Mating Mallard ducks at White Rock Lake, Dallas, TX
Mating Mallard ducks on the east shore of White Rock Lake

The female Mallard felt so violated with the entire ordeal that she felt the need to shower afterwards. The male Mallard looked on, not quite understanding the need to bath.

A pair of Mallard ducks at White Rock Lake, Dallas, TX

In the words of Neltje Blanchan: “Can words describe the fragrance of the very breath of spring?” 


In case you were wondering what the song sounded like, you can listen to it here: Time of the Season

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Friday, April 13, 2012

Spectacular Butterflies at White Rock Lake, Dallas

Butterflies are the Very Essence of Nature


Do you remember the joy you experienced as a child every time you saw a butterfly? Can you think of anything in nature that is more qualified than a butterfly to represent freedom, beauty or tranquility?

All of these images were taken at White Rock Lake in east Dallas, Texas. Most of them were taken on the banks of Dixon Branch Creek, just before it enters the lake.

The beautiful creature below is a Common Buckeye butterfly. It is a fabulous chestnut brown with 6 bright colorful eye spots.

Common Buckeye (Junonia coenia) at White Rock Lake, Dallas, Texas
Common Buckeye (Junonia coenia)

The Monarch is a spectacular species, and one of the most popular butterflies. These amazing creatures migrate to warmer climates and can travel up to 3000 miles in the process.  

Monarch (Danaus plexippus) at White Rock Lake, Dallas, TX

Monarch (Danaus plexippus)


Butterflies have been around for at least 50 million years and are an important component of the Earth’s rich biodiversity. They have been studied for over 300 years.

The striking fellow below is a Red Admiral (Vanessa atalanta).

Red Admiral (Vanessa atalanta) at White Rock Lake, Dallas, Texas
Dorsal view of the Red Admiral (Vanessa atalanta) 


Butterflies have the most fascinating life-cycles. The transformation from egg to caterpillar to chrysalis is one of the great wonders of nature.

The beautiful specimen below is a Variegated Fritillary (Euptoieta claudia).

Variegated Fritillary (Euptoieta claudia) at White Rock Lake, Dallas, TX

Variegated Fritillary (Euptoieta claudia)


Butterflies are good indicators of a healthy environment and healthy ecosystems. Based on the abundance of butterflies at the lake right now, one can only conclude that White Rock Lake is in an extremely healthy state.

Common Buckeye (Junonia coenia) at White Rock Lake, Dallas, Texas
Common Buckeye (Junonia coenia)

Like self-propelled flowers, butterflies flit from flower to flower adding even more color to the awesome landscape.


Monarch (Danaus plexippus) at White Rock Lake, Dallas, TX

Monarch (Danaus plexippus)



Side view of a butterfly at White Rock Lake in Dallas, Texas
The Question Mark butterfly (Polygonia interrogationis)

Question Mark butterfly (Polygonia interrogationis) at White Rock Lake, Dallas, TX
The Question Mark butterfly (Polygonia interrogationis)


Variegated Fritillary (Euptoieta claudia) at White Rock Lake, Dallas, TX

Variegated Fritillary (Euptoieta claudia)



Red Admiral (Vanessa atalanta) at White Rock Lake, Dallas, Texas
Red Admiral (Vanessa atalanta) 


Common Buckeye (Junonia coenia) at White Rock Lake, Dallas, Texas
Common Buckeye (Junonia coenia)


Question Mark butterfly (Polygonia interrogationis) at White Rock Lake, Dallas, TX
The Question Mark butterfly (Polygonia interrogationis)


Side view of a Sulphur butterfly at White Rock Lake in Dallas, Texas
Sulphur Butterfly

The Question Mark butterfly (Polygonia interrogationis) at White Rock Lake, Dallas, TX
The Question Mark butterfly (Polygonia interrogationis)

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Common Buckeye (Junonia coenia) at White Rock Lake, Dallas, Texas
Common Buckeye (Junonia coenia)


Red Admiral (Vanessa atalanta) at White Rock Lake, Dallas, Texas
Red Admiral (Vanessa atalanta) 

Side view of butterflies at Dixon Branch Creek, White Rock Lake
Side view of Question Mark butterflies

In the words of Rabindranath Tagore, “The butterfly counts not months but moments, and has time enough.”

Live like a butterfly!

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Friday, April 6, 2012

Blooming Marvelous Wildflowers at White Rock Lake

The wildflowers at White Rock Lake are absolutely glorious! All of the images below were taken at various parts of the lake in the past week. Some of the wildflowers have not been identified yet. If you can shed any light on their names, please feel free to contribute.

Louisiana Iris (Red Velvet Elvis) wildflower at White Rock Lake, Dallas, Texas
Louisiana Iris (Red Velvet Elvis)

Limestone Gaura (Gaura Calcicola) wildflower at White Rock Lake, Dallas, Texas
Limestone Gaura (Gaura Calcicola)


Eve’s Necklace or Texas Sophora (Sophora affinis) wildflower at White Rock Lake, Dallas, Texas
Eve’s Necklace or Texas Sophora (Sophora affinis) 


Dotted Blue-eyed Grass wildflower at White Rock Lake, Dallas, Texas
Dotted Blue-eyed Grass


Hudson Flax (Linum Hudsonioides) a.k.a. Texas Flax wildflower at White Rock Lake, Dallas, Texas
Hudson Flax (Linum Hudsonioides) a.k.a. Texas Flax.


Purple Poppy Mallow (Callirhoe involucrata) wildflower at White Rock Lake, Dallas, Texas

Purple Poppy Mallow (Callirhoe involucrata)



Unidentified

Mediterranean Mustard also known as Bastard Cabbage


White Clover with a honey bee at White Rock Lake, Dallas, Texas
White Clover with a honey bee.


Bluebonnets with a hard-working honey bee at White Rock Lake, Dallas, Texas
Bluebonnets with a hard-working honey bee.


Dogweed wildflower at White Rock Lake, Dallas, Texas

Dogweed



Wild Hyacinth wildflowers at White Rock Lake, Dallas, Texas
Wild Hyacinth


Wild Blue Phlox (Phlox divaricata L.) wildflowers at White Rock Lake, Dallas, Texas
Wild Blue Phlox (Phlox divaricata L.)



Spider Lily wildflowers at White Rock Lake, Dallas, Texas
Spider Lily


Hudson Flax with white spider at White Rock Lake, Dallas, Texas
Hudson Flax with white crab spider


Bluebonnet wildflower at White Rock Lake, Dallas, Texas
Bluebonnet

Limestone Gaura wildflowers at White Rock Lake, Dallas, Texas
Limestone Gaura (Gaura Calcicola)



Yellow Buttercups (Ranunculus)


Western Salsify (Tragopogon dubius) wildflowers at White Rock Lake, Dallas, Texas
Western Salsify (Tragopogon dubius)










Louisiana Iris Yellow with Honey Bee hard at work at White Rock Lake, Dallas, Texas
Louisiana Iris Yellow with Honey Bee hard at work.


Unidentified 


Carolina Bristlemallow (Modiola caroliniana) wildflower at White Rock Lake, Dallas, Texas
Carolina Bristlemallow (Modiola caroliniana)


Fleabane wildflowers at White Rock Lake, Dallas, Texas
Fleabane


A lone Limestone Gaura in a field of Bluebonnets, White Rock Lake, Dallas, Texas
A lone Limestone Gaura in a field of Bluebonnets


Star-of-Bethlehem wildflowers at White Rock Lake, Dallas, Texas
Star-of-Bethlehem


Japanese Honeysuckle (Lonicera japonica) wildflowers at White Rock Lake, Dallas, Texas
Japanese Honeysuckle (Lonicera japonica)


Beautiful butterfly pollinating wildflowers at White Rock Lake
Beautiful butterfly pollinating wildflowers at White Rock Lake





Greenthread (Thelesperma spp.) wildflowers at White Rock Lake, Dallas, Texas
Greenthread (Thelesperma spp.)


Queen Anne's Lace with Lady Bug at White Rock Lake, Dallas, Texas
Queen Anne's Lace with Lady Bug





Butterfly visiting a Carolina Bristlemallow at White Rock Lake, Dallas, Texas
Butterfly visiting a Carolina Bristlemallow 


Showy Primrose wildflower at White Rock Lake, Dallas, Texas
Showy Primrose



Dandelion Seed Head at White Rock Lake, Dallas, Texas
Dandelion Seed Head


Wild Blue Phlox wildflowers at White Rock Lake, Dallas, Texas
Wild Blue Phlox


Mediterranean Mustard also known as Bastard Cabbage - the water is reflecting the sky and the nearby trees

You can view more stunning wildflowers here:



Brilliant Bluebonnets Blooming at White Rock Lake





White Rock lake is located in east Dallas, Texas.

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