Showing posts with label Broward County. Show all posts
Showing posts with label Broward County. Show all posts

Saturday, February 16, 2013

Latest chapter in Whooping Crane saga ends with capture

Mary Lou and I got out about 15 minutes before sunrise on the morning of February 10th, hoping to see the male Whooping Crane #15-12 ("Cypress") that was the subject of my earlier post, A Lonely Whooping Crane. I had expressed concerns about the lone crane's survival skills, and thought it might be in jeopardy if left without others of its kind.

We had missed sighting it the past 3 days, and our neighbor Scott also had not seen it at the spot the crane liked to visit, just across the street from his home. As usual, Mary Lou walked up ahead of me while I took a few "shots in the dark..." well, semi-darkness. She continued the full 1 1//2 miles into the wetland preserve and then returned home at her customary fast pace.

An immature Little Blue Heron hunted along a row of sedges. Under-exposed, I liked the color cast by the filtered light of dawn in the still air.

Little Blue Heron immature 20130210

This Osprey was silouhetted against the sky, and when I processed the shot I had to push the brightness all the way up.

Osprey 20130210

I kept vigil, hoping I had gotten there before the crane departed for its foraging grounds. Looking towards the Everglades, to the west over the lake, the sky had a pre-dawn glow. I tried to overlook the deep tracks in the mud flats, created by the ATV riders. The crane usually emerged from a field just in front of the green trees to the far right in this photo.

Harbour Lakes mitigation lake HDR 20130210

My cell phone rang. It was Mary Lou, telling me that she had met two wildlife specialists at the entrance gate, Jeanette and Ricardo, from the Whooping Crane Eastern Partnership. They were asking about the crane. She related that I was about 1/2 mile up the gravel road, looking for it. The gate was locked and they could not access with their truck, so they rode their bicycles in. On the way in, they picked up the signal from Cypress-- in the direction of my neighbor Scott's home. Jeanette was carrying the receiver and antenna when she pedaled towards me. This crane did not carry a satellite locator, so ground reports were important to allow the researchers to know the general area in which they might track it with the short-range equipment.

Jeannette 20130210

I texted Scott and he confirmed that the crane was indeed on his front lawn. We entered the Harbour Lakes subdivision and encountered the crane just across the street from Scott's house.

Crane is wary 20130210

Jeanette spent over an hour gaining the crane's confidence. Several times it appeared spooked when pedestrians and especially those walking dogs came by. She fed the crane green grapes and corn.

Crane eating grape 20130210

It stepped in and out of the snare but Jeanette wanted a perfect capture. Her body language calmed the crane. She never walked directly towards the bird, but rather approaced it at an angle and usually looked away from it.

Jeanette builds trust 20130210

Several feral Muscovy Ducks and White Ibises joined in the feeding. Auto traffic increased as parents transporting children to schools and commuters heading to work moved by rapidly. We had to divert pedestrians, as the crane showed signs of being alarmed and prepared to fly. Then, the crane started walking away, across the road.

Crane walks away 20130210

Jeanette donned a white sheet similar to that used when the cranes are reared, as it hides the human form.

Jeanette in sheet 20130210

The crane actually came running to her! Within minutes the crane was captured. Here is a short video showing the entire sequence of events (Correction-- my lens system is 420 mm, not 720 mm-- I use a 300 mm + 1.4x extender).



Scott took this photo of Ricardo and Jeanette at the conclusion of the capture. It is ironic that it was Scott who first photographed the crane after its arrival in the wetlands, and now he took the final photo to document its departure. (© 2013 Scott McPherran, used with his permission).

Ricardo and Jeannette by Scott 20130210

Soon Cypress was safely on his way to join a mixed flock of adult Whooping and Sandhill Cranes in the Lake Okeechobee area.

Scott Crane Photo Jeannette 20120210Ken

The female crane #13-12 ("Tussock") recovered and was earlier released in Tennessee (See the interesting local newspaper account here). A US Fish and Wildlife news release with a video link may be viewed here.

While I am excited about the possibility that an Eastern migratory population of Whooping Cranes may be established by this program, I must admit to some concerns about this captive-bred crane. These birds are shielded from human contact while they are raised. They are fed using crane puppets and not exposed to human handlers unless the latter are draped in white sheets to hide their identity. (View WCEP slide show on training captive cranes.)

Perhaps it would be better if they learned to fear humans at some point before being released into the wild. These two birds permitted many people to approach them very closely, including youngsters on ATVs. Lacking fear of humans, they visited suburban lawns and even walked up to people. Might it have been a good idea to teach them that humans should be avoided? What if the first people they saw shot off firecrackers or clanged pots and pans to frighten them? Perhaps this would discourage them from approaching human habitations, and yet permit them to adapt to a more urbanized winter habitat.

Saturday, February 9, 2013

A lonely Whooping Crane

Most mornings this past week we have gotten out early to check on the welfare of the juvenile male Whooping Crane #12-15 who now wanders alone in our local wetlands and residential neighborhood. The female # 12-13 that accompanied him in his migration from Wisconsin and subsequent wanderings in south Florida suffered a foot injury and malnutrition. She is receiving verterinary care and rehabilitation at Disney Animal Kingdom in Orlando. For more information, see this earlier post on Birding is Fun.

Since losing his companion, the male has followed a fairly regular pattern of spending nights in a secluded corner of our birding patch the wetlands adjacent to our home, just this side of the patch of green trees in the background. Notice that the water levels have receded enough to allow the ATVs to trespass at will into the posted "protected" wetlands.

Crane hideaway 20130207

He is barely visible unless he emerges from behind the cattails that encircle a small pond which surely provides a food source.

Whooping Crane #15-2012 20130130

He usually flies out about 30 to 45 minutes after sunrise, and heads for a residential area just north of our home. Although the International Crane Foundation recommends that humans should not approach any closer than 200 yards, the bird often spends much of the day in the same spot, a broad patch of lawn between two homes. When I first saw him there he was standing right next to the sidewalk. I took these photos from the other side of the street, only about 40 feet away. I was impressed at how tall he is.

Whooping Crane 15 3-20130205

A pedestrian walked by, his posture suggesiting that he was deeply in thought or meditating. He seemed not to even see the crane, less than 10 feet away.

Whooping Crane 15 and pedestrian 20130205

I am concerned about the survival chances of a lone bird. Many species, notably geese and Sandhill Cranes, forage with others of their kind, but one member of the group always has its head up high looking for danger.This crane forages on a lawn that is certainly laced with fertilizer, herbicides and possibly pesticides.He has been seen eating acorns, but they are now in short supply, so they are not a reliable food source. Most of the wetlands are dried up. Earlier it had foraged along the canals but they are mostly dry. The receding water levels of the lakes and canals do provide rather extensive areas of exposed mud that attracts other birds.

One morning this week as we walked out before sunrise, the fog was lifting just above Mary Lou's head.

Fog lifting at sunrise 20130207

Only a few minutes later, the male surprised us by flying up from his overnight resting area just as the sun was coming up.He headed directly towards the residential subdivision, which is just north of our home. Eleven minutes later, instead of following his usual habit of staying there for much of the morning, he returned to the prairie location, and disappeared behind the stand of cattails, remaining there for over a half hour before once again flying up towards the cluster of homes.

Whooping Crane 12-15 at 0835AM  20130207

After he flew over the wires behind the houses, he turned back 180 degrees and headed towards me, landing at the east shore of the lake in the conservation easement/mitigation area that we call our birding patch..

Whooping Crane 12-15 at 0839AM  20130207

The crane preened, then foraged actively. 

Whooping Crane 12-15 at 0858AM  20130207

Whooping Crane 12-15 at 0849AM  20130207

I could not identify its prey. Boat-tailed Grackles were in abundance, and they were finding food in the mud along the shore. White Ibises, Tricolored and Little Blue Herons as well as Great and Snowy Egrets were taking aquatic prey. I hid next to a clump of high grass, and the crane seemed not to notice me. The crane exhibited more situational awareness than when it was in the residential area. When the other waders and blackbirds suddenly flushed (I am not sure why, but they acted as if an eagle, harrier or Peregrine flew over), the crane became very alert and held his head high. He looked up into the sky as a gull flew over. 

Whooping Crane 12-15 at 0850AM  20130207

Then he seemed to notice me and kept looking my way. Soon afterward he took flight and disappeared in the direction of his nighttime resting spot on the wet prairie.


Saturday, January 19, 2013

Whooping Cranes venture into South Florida

The new year got off to an exciting start. There were surprises, not all of them pleasant.

First, our local Bald Eagles have hatched out at least one chick, now visible to many enthralled nest-watchers..

You may remember (as related in this earlier post) that in early November our son-in-law in Illinois suffered serious injuries to both legs in a fall from a tree stand while hunting deer in North Carolina. He was transported back home to Illinois and required extensive surgery. Now he is wheelchair bound but healing well and should be walking soon. One of his close relatives in the Miami area died suddenly during the first week of January and since he is unable to travel we planned to represent his family at the wake and funeral service.

On Saturday, January 5 my friend and neighbor Scott, who regularly walks in our local wetlands area, Tweeted me with a photo taken by his daughter of a white crane, at the northern end of our local south Florida birding patch. On first glance I thought it might be an albino Sandhill Crane, but then realized that it was a juvenile Whooping Crane. The eBird data base contains no historical records of Whooping Crane sightings in either Broward County or Miami-Dade.

The bird was in an area in which groups of off-road vehicle drivers assemble on weekend nights and conduct races. I was concerned that the crane could be disturbed. Scott was unavailable and Mary Lou and I had obligations that kept us from going out into the patch, so I posted the sighting on the Tropical Audubon Society Bird Board with a request that someone come out to monitor and help protect the crane. Several birders responded, and some of the ORV riders told them that they had been seeing TWO of the cranes in the area just north of our patch since December 22!

The next morning we got out before sunrise and walked about a mile and a half, all the way north out of Miramar into the City of Pembroke Pines. After taking a few steps across the city limits I sighted two white dots in a wet prairie about a half mile away. We had to detour along a city street to avoid entering private land, but sure enough, we found the two Whooping Cranes.

Whooping Cranes 2012 15 Cypress male and 13 Tussock female 20130106

We learned from the website of the WHOOPING CRANE EASTERN PARTNERSHIP (WCEP) that these two first year Whooping Cranes (# 2012-13 and 2012-15) were among the six "Direct Autumn Release" (DAR) birds that migrated without the assistance of an ultralight aircraft. (See VIDEO and additional information at the end of this post). The six cranes, numbered 12 through 17, are identified by the arrangement of colored bands and transmitters on their left and right legs respectively.

Cranes # 12 13 15 16 and 17 migrated south in record time. According to WCEP, they departed from the Horicon National Wildlife Refuge in Wisconsin on 31 October. Satellite information indicated roost locations in Lawrence County, Indiana, on 31 October, then in Chester County, South Carolina, on 2 and 3 November where all five were also visually confirmed. Next they were located at Cape Romain National Wildlife Refuge, Charleston County, South Carolina, on 4 November, and in Glynn County, Georgia on 5 November.

Remarkably, in six days they had flown about 1200 miles unassisted, from Wisconsin to Clay County, Florida, by 6 November. They moved to Manatee County, Florida, on 7 November and into Everglades National Park, Monroe County, Florida, on 8 November and in Hendry County, Florida, on 9 November.

Cranes # 12, 16 and 17 remained in Hendry County, Florida, at least through January 4, 2013 but they were no longer together. On 28 December, # 12 was reported as having a possible leg injury.

The remaining crane #14 began migration with Sandhill Cranes from the Horicon National Wildlife Refuge more than three weeks behind the other five, on 23 November. Only 17 days later on 9 December, Crane # 14 was reported with sandhill cranes in Volusia County, Florida, where he remains.

These two cranes # 13 and 15 moved from their Hendry County location to Broward County, Florida, on 22 December.

Crane # 15, the one first photographed by my neighbor Scott is a male named Cypress. His band color pattern from top to bottom: left leg has a White/Green transmitter with antenna, and right leg has Green/Red/White bands:

Whooping Crane 15-12 Cypress male 20130106

Whooping Crane 15-12 Cypress 20130106

The other is Crane # 13, a female named Tussock. Her band color pattern from top to bottom: left leg has a Red/White transmitter with antenna, and right leg has a White/Green transmitter with antenna:

Whooping Crane 13-12 Tussock female with 2 transmitters 20130106

Whooping Crane 13-12 Tussock female 20130106

I hoped to personally document their presence on our patch, so on Monday Mary Lou and I again went out before sunrise and walked northward the entire length of the patch. No cranes! She was not interested in slogging the muddy trails and returned home, while I hiked an additional three miles along several paths that border the wetlands and lake.

Not finding the cranes, I headed for home. Just after entering our patch I ran into Brian Monk, another birder who was also searching for the cranes. I casually scanned the open areas with binoculars, and suddenly spotted one of the cranes. It was nearly a quarter of a mile away (actually 0.21 mile according to Google Earth), so my photo that documents the sighting is quite fuzzy. This is the male:

Whooping Crane 2012-15 male Cypress 20130107

As we continued south along the lake, Brian saw a white speck on the opposite shore, about 0.43 mile away. He gets credit for my opportunity to photograph the female:

Whooping Crane 2012-13 female Tussock 20130107

Brian and I were exploring an area where I saw both Swamp and Savannah Sparrows last week when Mary Lou called me at about 11:30 AM with news that our daughter in Illinois had fallen while carrying their Christmas tree down the stairs and had fractured bones in her ankle. Her husband is wheelchair-bound and she would need surgery. 

We were needed there to help them care for themselves and our two 7- and 8-year old granddaughters (not to mention two huge Tibetan Mastiffs and two large salt-water fish tanks). I rushed home and quickly made reservations. We packed and departed on a plane to Chicago at 3:30 PM, a quick transition from sub-tropical 84 degrees (F) to 12 degrees and blowing snow! 

Here they are, on Facebook. His open reductions required a metal plate, 10 screws, two pins and a cadaver bone transplant; She needed 13 screws, one metal plate, two pins, a washer and a wire, between them enough to keep a hardware store in business!



By the way, Whooping Cranes in this population are not "countable" for listing purposes as officially established in the American Birding Association (ABA) area. Of course, I like to watch pre-season exhibition football, basketball  and baseball, and I enjoy the games even though they don't "count."

Best viewed full-screen size.




Whooping Crane Reintroduction

The Whooping Crane Eastern Partnership (WCEP), of which the International Crane Foundation (ICF) is a founding member. presently operates two projects to restore a migratory Whooping Crane population in the eastern USA.  

The Ultralight-led Migration Project that began in 2001 utilizes eggs from captive breeding centers that are hatched at the Patuxent Wildlife Research Center in Maryland. The young cranes are later transferred to Wisconsin and trained to follow ultralight craft. After making their first migration to St. Marks National Wildlife Refuge on Florida's west coast, they find their way back to Wisconsin alone and continue to migrate back and forth unassisted. 

A second method, called the Direct Autumn Release (DAR), was started in 2005. These cranes are raised by the ICF using attendants dressed in crane costumes. Kept from human contact, they are housed with adult Whooping Cranes to assure that they imprint properly. Before fledging, they are transferred to Wisconsin and finally to the release point at Horicon National Wildlife Refuge. They learn to fly south by following the older cranes. Radio and satellite telemetry allow them to be tracked by ICF and US Fish & Wildlife Service 

For more information, visit   http://www.savingcranes.org/into-the-wild.html