Tag Archives: great egret (Ardea alba)

The rookery – Part 3

Humans seem inclined to lens the world through vision focused on self.  Thus becomes the agony of aloneness, separation from the world that nurtures us despite our intent to destroy it and all it births.  Too long have people scampered about in hurried endeavors to own, to acquire, to master.  And in response to our anthropocentric ways, too many lives have been brushed from the face of the planet that will never again be seen.

Long before sunrise on July 23, 1998, the city of Carrollton, Texas, began work on what it dubbed “Operation Remove Excrement.”  Huge industrial lights invaded the darkness at 4:00 AM and a motte at the city’s Josey Ranch Park came to life with the sound of bulldozers.  By 4:30 AM as resident Jack Laivins drove to work, the sky above the trees roiled with billowing smoke.  Upon closer inspection, though, he realized the smoke was actually thousands of heron and egret adults circling in the night sky above the municipal park.  Carrollton had decided to raze an active bird rookery while parents and offspring remained in the nests.

The official cost was staggering: several hundred birds killed, many hundreds more injured, thousands forced to abandon the area—most likewise abandoning their young, and an entire breeding territory decimated at the height of migratory bird nesting.  The city’s reason?  They had received “numerous complaints” about the noise and odor.  The town claimed it studied the area for several months, took its time in planning the action, and needed no permission to remove inconvenient birds. 

Acting lawfully, responsibly and humanely explains why the devastation took place during the overnight hours such that it would be complete before daybreak.  Unfortunately for Carrollton, it could never be completed before citizens noticed the dead bodies, the orphaned chicks, the wounded animals left in piles of rubble, and the panicked adults searching desperately for their children.  Three days later, hungry and parched birds were still being pulled from twisted and crushed debris, many with broken wings or legs, many more with neck or spine injuries, and some with limbs nearly severed.

The Josey Ranch Park rests on land donated by Don Josey, father of Melissa Gribble, a federally licensed wildlife rehabilitator.  The city’s sense of irony was fully intact.  They paid nearly $200,000 in rehabilitation costs and federal fines—an amount profoundly lacking under the circumstances.  And the public backlash reached international proportions as news of the incident spread.

The horror of Carrollton’s actions represents the worst of human society, a place where wildlife already pushed from most of its native habitat must face yet another harrowing obstacle course: trying to survive in those tiny plots of land still available whilst simultaneously hoping to go unnoticed by those who see such things as nuisances, inconveniences to be wiped from the planet’s surface.

Now leap forward to February 2009 at the University of Texas Southwestern Medical Center rookery in Dallas.

One-year-old little blue heron (Egretta caerulea) nesting for the first time as it transitions from the juvenile’s all-white plumage to the adult’s all-dark plumage (2009_05_17_019779)

After great egrets began arriving and building nests, maintenance staff decided to “landscape” around the tree grove that hosts a surprisingly diverse group of birds.  The school called it brush clearing.  Photos of the aftermath showed nests on the ground; saplings, snags and small trees felled; significant understory clearing; the pond wholly exposed to sunshine and human activity; and a lot of plant removal beneath and inside the drip line where birds actively roost.  Images also captured egrets wandering through a stark landscape that once hid them from prying eyes and predators.

Recently fledged male house finch (Carpodacus mexicanus) perched in a tree (2009_05_17_019810)

“They didn’t know the birds were there.”  Thus constitutes the brevity of the university’s response when asked about the incident.  Given the birds fly in and out of the trees on wings that span nearly six feet/two meters, and they make a great deal of noise during the breeding and nesting season, they could hardly go unnoticed.  After all, even the children at the daycare center across the street already had noticed the birds, small kids intoxicated by the exotic magic of the area where flying giants and colorful creatures spend many months from late winter through early autumn—and where these mystical beings have done so for at least half a century.

Male common grackle (Quiscalus quiscula) collecting insects for his chicks (2009_06_20_023983)

Many feared this represented a precursor to a Carrollton-like assault on the rookery.  Vocal citizens and organizations spoke up and the local media responded.  The Texas Parks and Wildlife Department got involved.  Yet I spent an insightful morning speaking to UT Southwestern administrators and walked away with an impression not of imminent doom but of palpable fear of bad press coupled with a sense of obligation and promise.

Little blue heron (Egretta caerulea) chicks still in the nest (2009_06_13_023108)

“It’s about the birds, not the people.”  No other statement from university officials struck me like that  one.  The UT Southwestern Medical Center in Dallas has “officially” hosted the rookery on campus grounds since at least 1966.  Circumstantial evidence suggests the rookery existed as far back as 1959 and anecdotal evidence indicates herons and egrets have nested in the area since at least 1938.  Regardless of the exact date, fifty years of the school’s own records stand as significant tribute to the longevity of this urban wildlife haven.

Recently fledged black-crowned night-heron (Nycticorax nycticorax) perched in a tree (2009_06_20_023813)

Dr. Charles Sprague, the first president of the university, asked that the birds be allowed to use the area for as long as they chose to nest there, essentially requesting of UT Southwestern that they respect and protect the site ad infinitum.  The school agreed.  Perhaps their readiness to accept that challenge stemmed from “knowledgeable sources” who claimed the rookery would self-destruct within ten years due to the volume of guano and the impact it would have on soil acidity and flora.  Contrary to that prediction, susceptible plants died while a host of other plants thrived—and the rookery goes on.

Great egret (Ardea alba) chick peering down from the nest(2009_06_13_023179)

An ongoing grassroots effort hopes to convince the UT System Board of Regents and the Texas Legislature to grant official recognition and protection to the rookery.  UT Southwestern appears inclined to host the birds, even if as an act of tolerance only, and as state property and a state organization the campus cannot blindly destroy the area without putting Texas in the position of having wiped out a long-lived nesting site for protected birds.

Nevertheless, many agree more can and should be done, especially in light of the greatest threat the birds now face, a relentless and insidious foe whose unimaginable power is matched only by heartlessness.  This adversary is responsible for the death of a great many birds this year, and the villain has caused the failure and abandonment of more nests in the rookery than has ever been seen before.  Even nests with chicks have been left to suffer under the skeletal hand of this monster.  The attacker remains bent on destroying what little of nature remains unscathed by the spread of civilization.

The enemy is at the gates.  You will come face to face with the ghoul in the final part of this series.

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Photos:

[1] One-year-old little blue heron (Egretta caerulea) nesting for the first time as it transitions from the juvenile’s all-white plumage to the adult’s all-dark plumage

[2] Recently fledged male house finch (Carpodacus mexicanus)

[3] Male common grackle (Quiscalus quiscula) collecting insects for his chicks

[4] Little blue heron (Egretta caerulea) chicks still in the nest

[5] Recently fledged black-crowned night-heron (Nycticorax nycticorax)

[6] Great egret (Ardea alba) chick peering down from the nest

[cross-posted to The Clade]

The rookery – Part 1

Farms and ranches.  Urban and suburban sprawl.  Highways and byways.  Throughout the “civilized” world, these anthropogenic artifacts have gone to great lengths in reducing the availability of natural habitat for plants and animals.  Traveling some distance from humanity seems a prerequisite just to see nature doing its thing in what little space we’ve left for it.  This explains why most people in developed areas rarely see anything more than a handful of bird species, the occasional rat or mouse or ant or wasp, and almost no flora save that planted in manicured lawns and decorative gardens.

Conversely, nature has an interesting way of taking advantage of what few opportunities we provide it.  These oft overlooked silos of life accommodate surprising diversity where it’s least expected.  And that creates an opening for discovery, a chance a lot of people won’t otherwise have.  Therein lay the seed of appreciation that can make a city dweller comprehend the beauty beyond—and the need to protect it.

As the crow flies, it’s less than four miles/six kilometers north of downtown Dallas: the University of Texas Southwestern Medical Center campus, a large complex of health facilities and college buildings smack-dab in the middle of the hospital district.  For miles around, you can’t throw a stone without hitting a doctor or nurse or medical student—and winding up in court for the trouble!  Yet nestled in the middle of a bustling urban landscape and located on the campus grounds lies an example of nature’s irony and majesty.


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A small wooded area at the intersection of two major roads.  It covers approximately 3.5 acres/1.4 hectares and serves as respite for students, faculty and patients, a breath of verdant escapism outside cold stone walls.  To leave the sterile smell of the hospital for a few minutes and listen as gentle breezes whisper through the trees probably has as much a medicinal effect as any prescription drug.  (Recent studies showing the impact of nature on the human mind and body certainly agree.)

But that humble area of trees and brush also serves another purpose, one protected by state and federal laws.  It’s a rookery for migratory birds.

A great egret (Ardea alba) perched in a tree (2009_04_19_015737)

I visited the site a few weeks ago.  I’m embarrassed to admit it was the first time in my life…and I’ve lived here almost 40 years.  It seems I’ve spent too much time running here and there, always looking for the exotic or out-of-the-way opportunities, and in the process I ignored what should be a cherished Dallas landmark.

Two black-crowned night-herons (Nycticorax nycticorax) perched in the treetops (2009_04_19_015683)

Like an imaginary world, the rookery presents as a surreal oasis in the middle of the city.  To get close to it, one must stand within a cluster of multi-story buildings and heavy traffic, yet the number of species nesting here defies belief.  Great egrets flit across six-lane roads.  Anhinga circle above the treetops.  Snowy and cattle egrets busy themselves with collecting twigs for their nests.  Green and little blue herons lurk in the shadows trying to remain invisible.  Once in a while a tricolored or great blue heron shows up.  And white ibises sometimes nest here as well, although they tend towards the middle of the woods, a forbidden realm that offers them escape from the city around them.

Two snowy egrets (Egretta thula) building a nest (2009_04_19_015774)

Then there are the robins and kingbirds and flycatchers, and the sparrows and wrens and finches.  Starlings, grackles, mockingbirds, doves, woodpeckers and an endless parade of other species likewise dwell or hunt here.  The magnitude, the volume of life in this tiny patch of land seems incomprehensible at best.  That’s never more true than when one considers that it’s a small green dot in the middle of a gray concrete jungle.

A tricolored heron (a.k.a. Louisiana heron; Egretta tricolor) perched in a tree (2009_04_19_016082)

Birds aren’t the only inhabitants.  Fox squirrels and Virginia opossums scurry about the branches and understory while trying to avoid the angry retribution of nesting herons.  If you’ve never seen a great egret wallop a squirrel for being too close to its nest, I assure you the squirrel always loses.  And it ain’t pretty.

A green heron (Butorides virescens) perched on a branch over a pond (2009_04_19_016309)

Signs around the periphery of the grove adamantly declare the obvious: “Bird Nesting Area: NO TRESPASSING.”  These manifest the university’s responsibility…but not necessarily its wishes.  Controversy surrounds this wonder, this beguiling gem amidst mundane people and their ways.  While so many pass by without noticing, even the Texas Parks and Wildlife Department pays attention.

An American robin (Turdus migratorius) standing in dirt looking for food (2009_04_19_015993)

I contacted UT Southwestern about the rookery.  I asked for more than the usual press release: I added several specific questions related to historical treatment of the area and what plans exist for the future.  I have yet to hear back, although I hope to include their response in future installments of this miniseries.

A Virginia opossum (a.k.a. possum; Didelphis virginiana) looking down from within a tree (2009_04_19_016229)

Meanwhile I’m left with a sense of awe and intrigue.  I’ve seen alligators and crocodiles, killer snails and killer snakes, rodents larger than most dogs and rodents smaller than a thumbprint, whales and wasps of many stripes, and countless birds that fill every niche of nature’s womb, yet still I find myself beguiled by the bounty of life that finds home and safety in a wee bit of woods hidden within a concrete jungle.  It’s a testament to life that many hundreds of nests will be built there—again.

The rookery calls me back while the spring nesting season continues.  I intend to return as often as I can to document this marvelous dichotomy, a simple little spot that reminds me of what Rachel Carson penned in The Sense of Wonder:

For most of us, knowledge of our world comes largely through sight, yet we look about with such unseeing eyes that we are partially blind.  One way to open your eyes is to ask yourself, ‘What if I had never seen this before? What if I knew I would never see it again?'”

Indeed, what if…

— — — — — — — — — —

Photos:

[1] Great egret (Ardea alba)

[2] Black-crowned night-herons (Nycticorax nycticorax)

[3] Snowy egrets (Egretta thula)

[4] Tricolored heron (a.k.a. Louisiana heron; Egretta tricolor)

[5] Green heron (Butorides virescens)

[6] American robin (Turdus migratorius)

[7] Virginia opossum (a.k.a. possum; Didelphis virginiana)

[cross-posted to The Clade]

MR NOT DUCKS

To finish what I started for dearest nathalie with an h, who claims vehemently—and overmuch—that she sees only ducks when visiting White Rock Lake, I thought it time to share some of the other waterfowl who live here but who are in fact not ducks.  To be more precise, these are herons[1].

A cattle egret (Bubulcus ibis) perched in winter trees (2009_02_14_009307)

A cattle egret (Bubulcus ibis) perched in the trees across the lagoon[3].

A green heron (Butorides virescens) standing in verdant spring foliage (20080629_08323_n)

A green heron (Butorides virescens) hiding amongst branches draped over a creek.

A black-crowned night-heron (Nycticorax nycticorax) perched on fallen limbs (2009_02_03_006217)

A black-crowned night-heron (Nycticorax nycticorax) trying to sleep on a sunny afternoon.

A snowy egret (Egretta thula) perched on a log in Sunset Bay (20080701_08757)

A snowy egret (Egretta thula) perched on a log in Sunset Bay.

A great egret (Ardea alba) standing along the banks of a creek (2009_03_07_012299)

A great egret (Ardea alba) standing along the banks of Dixon Branch near the confluence.  (I think the mallard drake is there for decorative purposes.)

A great blue heron (Ardea herodias) standing in the treetops (2008_12_28_003901)

A great blue heron (Ardea herodias) perched high in the treetops[4].

A yellow-crowned night-heron (Nyctanassa violacea) resting in the middle of a pond thick with vegetation (2009_04_16_015547)

A yellow-crowned night-heron (Nyctanassa violacea) resting in the middle of a pond thick with vegetation.

A little blue heron (Egretta caerulea) stalking the shallows of a plant-filled swamp (2009_04_16_015585)

A little blue heron (Egretta caerulea) stalking the shallows of a plant-filled swamp[5].

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Notes:

[1] While these are all herons by definition, some are called egrets.  ‘Egret’ is the name given to heron species that is normally all white[2] and that grows long, showy plumes in the breeding season.

[2] The term “all white” does not refer to color morphs, forms of albinism or those species that demonstrate white plumage only during adolescence.

[3] The cattle egret perched in trees some distance from me.  Given its small size yet high reflective properties when matched against barren winter trees, I assumed at the time that it was a great egret curled up sleeping near the water’s edge.  Only when I processed the images much later in the day did I see it clearly enough to recognize my error, after which I cursed myself for not taking more than one cursory photo.

[4] Undoubtedly the most difficult heron species to photograph, great blue herons are flighty creatures who avoid humans at all costs.  It’s more likely for me to see one take to the skies and disappear behind treetops than it is to see one standing still near enough and long enough for me to capture a good picture.

[5] Little blue herons are anything but little, yet they are smaller than great blue herons.  This has to be my favorite heron species given its color, something I failed to capture in this image as I was looking at a dark bird in the middle of verdant foliage covered with water, water reflecting sunlight right into my face and the camera lens.  Nevertheless, you can see this bird’s plumage is a vaporous menagerie of my favorite color: purple.

[6] As for the title, see the bottom of this post for an explanation.

Sunset Bay – Part 2

Your sunset is not like my sunset, and I can’t explain my sunset to you no matter how much I describe it.  Words become feeble in such vain attempts.

A female Muscovy duck (Cairina moschata) foraging on shore at sunset (2009_02_18_010153)

Your eyes taste the universe differently than my eyes: they see the fragrances and smell the light from places I have never traveled.

Three great egrets (Ardea alba) wading through the confluence as mallard ducks (Anas platyrhynchos) swim in the background (2009_02_18_010168)

As a star falls below the horizon, the smile I envision might to you be a frown, although both are expressions of the same magic drawn upon canvases made of separate thoughts.

A great blue heron (Ardea herodias) in silhouette as various ducks swim about (2009_02_18_010188)

Shadows grow long in my sunsets, silhouettes pulled toward darkness that turn even the smallest life into a giant, and true giants become leviathans unimagined.

American white pelicans (Pelecanus erythrorhynchos) line the sandbar at sunset while a plethora of waterfowl swim in the bay (2009_02_18_010197)

The sky burns with day’s waning embers, a horizon filled with flames unseen, palpable art untouched yet touching.  Or perhaps you see a setting sun hidden by earth until its light becomes a memory of what was.

A great egret (Ardea alba) and a great blue heron (Ardea herodias) stand amongst swimming mallard ducks (Anas platyrhynchos) (2009_02_18_010205)

And reflected upon sky held by water becomes the hues of what is indescribable, for how can any life put words to that which only one at a time may know?

Five great egrets (Ardea alba), a great blue heron (Ardea herodias), various ducks and gulls, American coots (Fulica americana) and an American white pelican (Pelecanus erythrorhynchos) facing sunset with urban Dallas towering in the background (2009_02_18_010207)

Even when I stood in awe of the vision, others passed by seeing that which I did not see, and not seeing that which I did see.

American white pelicans (Pelecanus erythrorhynchos) demarcating the safety of the bay against sunset (2009_02_18_010212)

Finally the last sparks of daylight flitted into the heavens.  Behemoths made of white wings held the line betwixt that which was and that which was to come.  Others might say they simply prepared for nightfall…because they see things differently.

A great egret (Ardea alba) marching through the shallows with mallard ducks (Anas platyrhynchos) swimming about and American white pelicans (Pelecanus erythrorhynchos) nestled in the background (2009_02_18_010217)

Your sunset is not like my sunset, and I can’t explain my sunset to you no matter how much I describe it.

— — — — — — — — — —

Photos:

[1] A female Muscovy duck (Cairina moschata) foraging on shore.

[2] Three great egrets (Ardea alba) wading through the confluence as mallard ducks (Anas platyrhynchos) swim in the background.

[3] A great blue heron (Ardea herodias) in silhouette as various ducks swim about.

[4] American white pelicans (Pelecanus erythrorhynchos) line the sandbar at sunset while a plethora of waterfowl swim in the bay.

[5] A great egret (Ardea alba) and a great blue heron (Ardea herodias) stand amongst swimming mallard ducks (Anas platyrhynchos).

[6] Five great egrets (Ardea alba), a great blue heron (Ardea herodias), various ducks and gulls, American coots (Fulica americana) and an American white pelican (Pelecanus erythrorhynchos) facing sunset with urban Dallas towering in the background.

[7] American white pelicans (Pelecanus erythrorhynchos) demarcating the safety of the bay against sunset.

[8] A great egret (Ardea alba) marching through the shallows with mallard ducks (Anas platyrhynchos) swimming about and American white pelicans (Pelecanus erythrorhynchos) nestled in the background.