Wood Buffalo Whooping Crane Fledgling Survey Completed

by Friends of the Wild Whoopers

Twenty-three Whooping Crane fledgling chicks were observed on Wood Buffalo National Park nesting grounds during a survey on August 7-11, 2015 according to Stuart MacMillan, Manager, Parks Canada, WBNP. The survey was conducted by staff from Wood Buffalo National Park (WBNP) and the Canadian Wildlife Service (CWS).

According to MacMillan, “During the five days of surveying the team observed a total of 179 cranes. The 23 fledglings were found in 23 family groups.  No families with 2 chicks were observed this year.”

In addition to the family groups with fledglings, the surveyors observed 1 group of three, 50 groups of two, and 7 individual Whooping Cranes.

Data from the survey are used to document the breeding success of the Whooping Crane population.

Preliminary analysis shows that the number of young fledged per nest is 0.34, similar to last year’s rate of 0.39 and within the normal range of variation.

MacMillan explained that “During the 2015 nesting period it was an exceptionally dry year in the region. Ponds in the nesting area were noticeably dryer, but what impact this may have had on crane productivity is not yet known.”

Nesting wetlands in Wood Buffalo National Park, Canada are suffering from too little rain. Photo by Sharon Irwin, WBNP
Nesting wetlands in Wood Buffalo National Park, Canada are suffering from too little rain. Photo by Sharon Irwin, WBNP.

According to WBNP/CWS data base, in 2014, 32 chicks were produced from 82 nests for a breeding success rate of .39 fledged young per nest.

“During the 2014 Survey, a total of 202 cranes were observed. The survey team counted 32 fledglings in 30 family groups (28 families with one chick and 2 families with two chicks), 6 groups of three, 43 groups of two, and 6 individual cranes” according to WBNP officials.

Two adults and one fledgling chick Whooping Cranes in Wood Buffalo National Park. Not that the wetlands are virtually dry due to low rainfall. Photo by John D. McKinnon, WBNP.

Two adults and one fledgling chick Whooping Cranes in Wood Buffalo National Park. Note that the wetlands are virtually dry due to low rainfall. Photo by John D. McKinnon, WBNP.

MacMillan pointed out that: “Knowing annual breeding success allows Parks Canada, the Canadian Wildlife Service, the U.S. Fish and Wildlife Service and other partners to effectively manage issues related to the cranes recovery. By counting the number of fledgling chicks, we gain important insights into the health of the nesting flock, and contributes greatly to our ongoing stewardship of the species.”

Whooping Crane nesting area in Wood Buffalo National Park. Notice the low water conditions that may have affected nesting success in 2015. Photo by John D. McKinnon, WBNP

Whooping Crane nesting area in Wood Buffalo National Park. Notice the low water conditions that may have affected nesting success in 2015. Photo by John D. McKinnon, WBNP   

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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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Whooping Crane Nesting Grounds Discovered

For many years the location and whereabouts of the whooping crane nesting grounds of the only wild flock of whooping cranes remained elusive and unknown. Whooping crane observers only knew that the birds migrated from “somewhere” in Canada to the Texas Coast. As pressure mounted to protect and manage the birds, it was important to locate their nesting grounds so these essential habitats could be protected before it was too late to save the whooping crane from extinction. In 1954 the whooping crane nesting grounds in Wood Buffalo National Park were discovered.

This past spring and early summer saw warm temperatures and little rain at Wood Buffalo National Park, resulting in wildfires within the park’s boundaries. In 1954 when the nesting grounds were discovered, conditions were similar and if it hadn’t been for one of these fires and one observant forester, the nesting grounds may not have been discovered in time to save our beloved and majestic whooping cranes.

Dr. William A. Fuller is often given credit for the discovery of the whooping crane nesting grounds but FOTWW invites you to read his account, in his own words, of this historic discovery and whom he believes should be given credit for it.

DISCOVERY OF THE NESTING GROUND OF THE WHOOPING CRANE

by Dr. W. A. Fuller

I have received a lot of credit for the discovery in 1954 of the only whooping cranes in Canada, but if it hadn’t been for the fire and an observant forester named George Wilson, I might never have gone out to identify the birds. The last nest of a whooping crane had been seen in about 1926 in Saskatchewan. Members of the U.S. Fish and Wildlife Service (USWS) and others had searched from central Saskatchewan to the delta of the Mackenzie River without success. The USWS was interested because whoopers migrated to Texas. In 1945, I spent the summer working on fish in Lake Athabasca. At the end of the summer I decided that I would never return to the north. However, in 1946 I signed up to spend the summer at Great Slave Lake. The following winter I put together all the data that had been gathered over several years on the “Inconnu” (Stenodus leucichthys) and submitted the result as my masters thesis for the University of Saskatchewan. Convocation took place in early May.

Whooping crane nesting grounds.

Whooping crane at Wood Buffalo National Park. photo by Klaus Nigge

A few days after the ceremony, I turned 23, and on the last day of May I married the young lady who is still my wife. I had previously applied for one of two jobs advertised by the federal government, and I was approved for the one based in Fort Smith, NWT. I found the north gets under your skin, and my wife Marie and I landed in Fort Smith on June 5. My duties centerd on mammals in the south half of the Mackenzie District and in Wood Buffalo National Park (WBNP), part of which is in Alberta. In those days, the United States sent a bird guy, Bob Smith, and an assistant down to the Arctic Ocean. They flew out of Fort Smith for two or three days, and I usually took them up on their invitations to go on their sorties. Bob was a great guy, as well as a good pilot and a good bird man. Although waterfowl were the main target, they kept their eyes open for other birds, such as whooping cranes. As late as 1954 they had not made a sure discovery of whoopers, although on an earlier flight with them, one thought he had spotted a crane, but by the time Bob swung the plane around, whatever had been seen had disappeared.

In June 1954, a fire broke out in the northern part of  Wood Buffalo Park. On June 30, the fire crew radioed to Fort Smith that one of their pumps was out of order. The forestry guy, George Wilson, went out to the site of the fire in a whirlybird piloted by Don Landells. I was in my office around 4:00 p.m. when a message came in from the plane to the effect that George and Don had seen a few big white birds, which they suspected were whooping cranes. Furthermore, Landells was to make another trip on the same route with a new pump, and if Bill Fuller was at the landing spot at 5:00 p.m., he could go back with Don and the pump.

Bill Fuller was at the landing and ready to go at 5:00 p.m. Don took us back on about the same route he had flown earlier, and we did see some large white birds, which were certainly whoopers. There were young birds as well as adults, so there was reason to believe that the nesting grounds were not too far away. I think we saw about nine birds on that first trip. I sent a telegram to the head office in Ottawa later that evening.

Ottawa’s reply the next morning asked me to keep an eye on the birds whenever there was a chance. I made several trips on an ordinary prop plane. On one such trip I counted thirteen birds, which was just over half of the birds (21, I think) counted in the Texas flock at that time.

Whooping crane nesting grounds./Wood Buffalo National Park.

Two adults and one juvenile whooping crane.Photo: John McKinnon / ©Parks Canada /Wood Buffalo National Park.

The Whooping Crane Society and the USWS were very excited about the discovery, and soon there was talk about a ground survey in 1955. Canadian and American scientists would carry it out. However, the Canadian Wildlife Service (CWS) did not want to commit to that until there was proof of nesting, so I was to take a look next spring as early and as often as possible.

In those days, light aircraft landed on skis in winter and on pontoons in summer. The changeover was made in Edmonton in spring and fall, so it was difficult to find transportation just when I needed it. While our government plane was in Edmonton, I got a ride with a pilot from Yellowknife on his way to Edmonton. I got another ride in a plane owned by the RCMP in Fort Smith. On that flight I saw what could only be a crane sitting on a nest. So the ground survey was on. Robert P. Allen of the National Audubon Society was to lead it. When Allen arrived in Fort Smith, we made one flight over the area so I could show him the location of the known nests.

I made other flights, and I think I found a few more nest sites, but when the ground survey came on, I was at a conference in Alaska. The attempted ground survey is a story of its own. In 1956  I moved to Whitehorse in the Yukon, and Ernie Kuyt of the CWS took over work on the cranes. I had flown over the region of the first sightings a number of times. I had noted the tracks in the mud and searched my brains for a mammal that would make such a trail in the soft mud of the lake bottoms. Big birds never crossed my mind until I saw the cranes there in 1955. So who discovered the nesting ground? Wilson and Landells, who saw the big white birds? Me, because I saw young birds as well as mature birds on my sorties in 1955 and was also the first to see a female on a nest in the spring of 1956? It doesn’t really matter. The important point is that an important nesting ground was found. Each year for several more years, Ernie Kuyt found new nests. The total number of cranes in the Texas/WBNP flock has continued to increase in most, if not all, years since 1955.

* Published in Wild Lands Advocate, The Alberta Wilderness Association, December 2004 • Vol.12, No. 6, pages 16 and 17.

friendsofthewildwhoopers.org logo

friendsofthewildwhoopers.org

***** 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.