Earth Day 2011

To honor our planet and celebrate Earth Day 2011, Alligator River National Wildlife Refuge and the Red Wolf Recovery Program are hosting a very special Earth Day howling safari on Saturday, April 23rd. The event starts at 7:00 pm at the Creef Cut Wildlife Trail parking lot. No registration is required, but space is limited. For more information, please visit our Howling Safaris website.

Settling In

My name is Jessica, and I am the current red wolf caretaker intern for the Red Wolf Recovery Program. My time at Alligator River National Wildlife Refuge has been everything I have dreamed of and so much more.

I started on a Monday by moving into the caretaker's cabin at Sandy Ridge, the Red Wolf Recovery Program's captive-holding facility. It was better than anything that I had thought would be provided in the woods. I have lights and heat and I even on occasion have running water and electricity. After getting settled into my cabin I was given a tour of the wolf enclosures where I would be spending most of my days. And on my first night in the cabin, the wolves howled for me. It was a great first day!

Over the rest of that week I began feeding the wolves on my own. I was also having animals brought in that would be staying for a couple of days that I had to get settled in by myself. I wasn’t sure if life could get better at that point.

Later, once I was comfortable with my regular duties and daily tasks, I went with one of the Red Wolf Recovery Program biologist to check traps. Though we didn’t catch anything that day I learned a lot. I saw how to set traps and what to look for when choosing a location for traps. I learned what made one place better than another. -- Jessica

Pack Intact

Just prior to red wolf whelping/denning season last April (2010), biologists with the Red Wolf Recovery Program were alarmed at the sudden disappearance of female red wolf 1470F, the breeding female of the Northern Pack. 1470F was then just short of four years old, and had recently formed a new pair bond in her natal territory with male red wolf 1628M. Program biologists were hopeful she would have her first litter that year.

During whelping season, biologists conduct radio telemetry flights three times a week in an effort to pinpoint when and where each breeding female is denning. When a female restricts her movements to a particular place it is assumed that she is denning. Biologists then use ground radio telemetry to track to her and the den. Just as it appeared that 1470F was beginning to restrict her movements and establish a den, her radio telemetry signal was lost. Had something bad happened to her? Or was it simply a malfunctioning radio telemetry collar. We had hoped for the latter.

The only way to know for sure what had happened to 1047F was to set traps in an effort to capture her. Trapping would have to wait, though. If she was still around, and if she had a litter of pups, it would be too risky to capture her while she was raising a litter. Attempts to capture her would have to wait until the pups, if there were any, were large enough to be trapped and fitted with a radio telemetry collar.

Then, in June, a graduate student conducting research on red wolves was working in the Northern Pack’s territory when he happened to see three wolf puppies. As luck would have it, we were able to capture one of the puppies. A blood sample was taken, and genetics results confirmed the pup to be the offspring of 1470F and 1628M. This was great news! We now knew that 1470F had indeed given birth to her first litter. But we still weren’t sure of her presence. The pup, of course, was released right away to rejoin his pack.

In January (2011), we decided the pups would finally be big enough to be safely captured and fitted with a radio telemetry collar. Traps were set, and three pups were quickly captured, including the pup we had captured the previous June; they were in perfect health. Soon after, 1628M, the breeding male, was captured along with a fourth pup. But there was still no sign of mom. Finally, about a week later, our lucky day arrived. A strong, healthy 1470F was caught in our trap. The radio telemetry collar she was wearing had malfunctioned. We replaced it with a new one, and released the entire family back into their territory. -- Ryan

The life of 904F

Back in September (2010), the Red Wolf Recovery Program lost one of the longest-lived, wild red wolves in the program’s history. Female red wolf, known as 904F, who spent most of her life as the matriarch of the Milltail Pack on Alligator River National Wildlife Refuge, was discovered dead on the west side of the refuge near the community of East Lake, Dare County, North Carolina. It appeared as if she died from natural causes.

904F was born on the west side of the refuge in the spring of 1997. She became the breeding female of the Milltail Pack when she was just two years of age, and held that position for many years raising several litters of pups. In late 2006, 904F was pushed out of her natal home range by a younger, stronger female red wolf.

[904F at 10 years of age, showing off her facial scars]
904F was captured again in 2007, and at 10 years of age she appeared to be weakening and wasn't expected to live much longer. However, she continued to surprise Red Wolf Recovery Program biologists with her resiliency, surviving three more winters and establishing a new territory for herself on private property well south of her natal range. It remains a mystery why she came back to her place of birth on the refuge just before she died.

Female red wolf 904F lived a full life, and will continue to be well represented by her offspring for generations to come. In fact, her son, 1544M, now nearly five years of age, is the breeding male of the Milltail Pack. -- Ryan

[1544M at 8 months of age, showing off his new radio telemetry collar]

Management Techniques: Processing a Red Wolf

Once a red wolf has been captured, it is placed in a kennel and transported to the U.S. Fish and Wildlife Service's Red Wolf Education and Health Care Facility, where it is “processed” before being released.

Wild red wolves are instinctively fearful of humans and are generally docile when handled. A wolf is typically restrained by placing a muzzle over its mouth, tying its hind legs together, and keeping a hand on its shoulder to hold it down. Occasionally a wolf may resist being muzzled to the extent that it must be sedated for the processing. Either way, all precautions are taken to maximize the safety of the wolf as well as the biologists handling the wolf.


Processing involves recording the wolf’s weight and body measurements, drawing a blood sample for future research, administering vaccines to prevent rabies and other common canid diseases, assessing the overall health of the wolf, and finally, fitting it with either a GPS or VHF radio telemetry collar so that it can be monitored upon release. After the processing is complete, the wolf is transported back to its home range and released.

Abdominal Transmissions

Biologists with the Red Wolf Recovery Program occasionally target capturing a juvenile red wolf in a trap, in which case it can be impossible to safely and effectively fit the young wolf with a radio telemetry collar. If the collar is fitted for the young wolf's current size, the wolf may continue to grow causing the collar to become too tight, and possibly even embed itself into the wolf’s neck. If the collar is attached too loose, the wolf may slip out of it and radio contact will be lost. The solution? Abdominal radio transmitters.


Three young siblings, born in the spring of 2010, were recently captured when they were just seven months old. Even for a seven-month-old red wolf pup they were a bit on the small side, weighing in at just over 30 pounds each. An adult red wolf can weigh anywhere from 45 pounds to 85 pounds. Knowing that they could still put on a considerable amount of weight before reaching adult size, we decided to implant them with abdominal transmitters rather than fit them with a radio telemetry collar.


The young wolves were transported to a local veterinarian, where they were sedated and prepared for surgery. A sterilized transmitter was inserted in the abdominal cavity of each wolf through a small incision. Each transmitter emits a pulse signal at a unique frequency which enables biologists to track the animal. After a short recovery period, the pups were transported back to their natal territory and released near their parents. -- Ryan

A Notable Capture

The fall trapping season began with a notable capture. This male wolf was born in 2009 at the Lincoln Park Zoo in Chicago, IL. He and his sister were fostered into a wild litter when they were just two weeks old.


Until his capture in late October we were uncertain if he had survived that first year as a pup. Having dispersed from his natal home range sometime last year, he was caught using a soft-catch trap in a territory belonging to a 2-year-old female wolf.


Radio-collared and released, our hopes are that he will remain in this area and pair-bond with the female wolf, forming a new breeding pair and possibly producing pups in 2011. -- Art