431 Wild Whooping cranes estimated on Aransas NWR primary survey area

 2016 Whooping Crane Winter Survey Results Released

Whooping Crane Winter Survey

Whooping Cranes at Aransas NWR. Photo by Kevin Sims. Click photo to view full size.

Once again, Terry Liddick, pilot/biologist from our Migratory Birds program, served as a pilot, flying a U.S. Fish and Wildlife Service Cessna 206. This year Phil Thorpe also served as a pilot, flying a U.S. Fish and Wildlife Service wheeled Kodiak. Observers were Wade Harrell, Jena Moon (Refuges Inventory and Monitoring biologist), Doug Head (Refuges Inventory and Monitoring biologist) and Stephen LeJeune (Chenier Plains Refuge Complex Fire Program). Doug Head (Refuge Inventory and Management biologist) served as survey coordinator.

431 Wild Whooping Cranes Estimated on the mid-Texas coast on and around Aransas NWR.

Whooping Crane Winter Survey

Whooping crane family at Aransas National WIldlife Refuge. Photo courtesy of Kevin Sims.

The U.S. Fish and Wildlife Service estimated 431 whooping cranes in the Aransas-Wood Buffalo population inhabited the primary survey area  for the winter of 2016–2017.
Whooping Crane Winter Survey

Whooping Cranes at Aransas NWR. Photo by Kevin Sims. Click photo to view full size

Survey results indicated 431 whooping cranes (95% CI = 371.1–492.7; CV = 0.101) inhabited the primary survey area (Figure 1). This estimate included 50 juveniles (95% CI = 36.3–60.9; CV = 0.144) and 162 adult pairs (95% CI = 139.2–185.5; CV = 0.100). Recruitment of juveniles into the winter flock was 13.1 chicks (95% CI = 10.4–16.6; CV = 0.119) per 100 adults, which is comparable to long-term average recruitment. The precision of this year’s estimate achieved the target set in the whooping crane inventory and monitoring protocol (i.e., CV < 0.10).

Click on the link to see full report: Whooping Crane Winter Survey Results.

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***** FOTWW’s mission is to help preserve and protect the Aransas/Wood Buffalo
population of wild whooping cranes and their habitat. *****
Friends of the Wild Whoopers is a nonprofit 501(c)3 organization.

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TransCanada biologist disputes claim that Keystone XL pipeline would harm endangered whooping cranes

Keystone XL

Two whooping cranes browse a cut corn field along the Platte River Valley in Buffalo County, Nebraska.
MARK DAVIS/THE WORLD-HERALD

LINCOLN — A biologist employed by TransCanada is disputing contentions that new transmission lines associated with the proposed Keystone XL pipeline would harm endangered whooping cranes.

Jon Schmidt, a Florida-based regulatory consultant for the pipeline firm, said that the 36-inch, crude-oil pipeline would require only about 20 miles of additional electrical transmission lines (to serve pipeline pumping stations) across Nebraska.

That, Schmidt said, represents only a .4 percent increase in the 5,471 miles of transmission lines that already exist in the migratory corridor used by the cranes, representing a “very minor” risk to whoopers.

Keystone XL

Proposed Keystone XL Pipeline route. The World-Herald

The written testimony, submitted earlier this week, rebuts testimony filed a month ago by Paul Johnsgard, a retired University of Nebraska-Lincoln professor who has written extensively about whooping cranes.

Johnsgard said that the new electric transmission lines required by the XL project would “significantly” increase whooper deaths from collisions with the lines.

When asked about the rebuttal on Wednesday, Johnsgard agreed that the risk was small but said that losing even one of the endangered cranes wasn’t worth it.

“I don’t regard even a slight danger as something that should be ignored,” he said, adding that power line collisions are the No. 1 cause of death for whoopers.

TransCanada is seeking permission from Nebraska for a 275-mile route for the Keystone XL across the state. Several pumping stations will be built, which will require building electric transmission lines to them.

Read more here and let us know what you think.

 

***** FOTWW’s mission is to help preserve and protect the Aransas/Wood Buffalo
population of wild whooping cranes and their habitat. *****

Friends of the Wild Whoopers is a nonprofit 501(c)3 organization.

 

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