Photo By Danielle Gardner of    Pettee Ranch

Photo By Danielle Gardner of Pettee Ranch

Dedicated leadership with a proven record of success.


IYAK Board of Directors

Preserve, Promote, Protect IYAK. IYAK Board members are the dedicated yak ranchers who steer our organization towards a sustainable future by adopting sound, ethical, and legal governance and financial management policies, as well as by making sure our nonprofit has adequate resources to advance its mission. 


Stephanie David, President

Bow Creek Ranch, Lenora, Kansas

Stephanie's home is Bow Creek Ranch, where she and her husband Doug raise yak and quarter-horses. During her tenure as president she has been an enthusiast and strong leader for IYAK.




Lawrence Richards, Vice President

Living Diamonds Ranch, Polson, MT

I am a founding member of IYAK and NAYR since 1989 and have been a BOD member continuously since 2009 on both the Registration Committee and the Genomic Committee since their formation. 

I have been a major element in the development  and implementation of both the Appendix Program and the Generation Based Progression Registry, which allow members to introduce new animals into the NAYR. In most cases I have written the protocols for these programs. And in my 2015 Denver presentation and my 2018 Genomic Research Presentation at Denver I have presented these programs and the rationale and the science behind them to the membership. These presentations are available on the IYAK website.

I have been a strong force in protecting the NAYR the highest resource of IYAK from the intentional hybridization with cattle for the short term gain of those promoting fraudulent yaks. The science from UC Davis and GeneSeek has supported this position and is a very effective tool for protecting the integrity of the NAYR. 

IYAK is on the verge of new genomic based developments which will enhance the position of IYAK as a scientific based breed association with a view to the future. It will be an exciting time to be an IYAK member. 


Claire Roberts, Registrar

Yak Commander Ranch, Kansas




Holly Head Shot copy.png

Holly Modjeski, Treasurer

Yaks on Yucca, Parker, Colorado

I originally became interested in yaks as an opportunity for a small acreage holder to raise a sustainable, manageable animal for personal use. Fiber, dairy and packing also make yak the perfect animal in my mind.  I am interested in seeing where yak fit in with declining pastures and water availability in the Western United States. In 2013, I acquired my first yak and I have been in love with these majestic creatures ever since.  

I started my business career 35 years ago after attending nursing school in Texas in the 1980s. I held positions as a Training Coordinator, Patient Advocate and Practice Manager.  I owned several businesses including a catering business, practice management consulting business and medical transcription business.  I graduated with honors from the University of Texas Paralegal Certification Program in 2002. I worked in Bankruptcy, Real Estate, Family Law and Criminal Defense.  I also have an extensive accounting background.  

I served as Chairman of the IYAK Nominations Committee in 2017 and am now the Chairman of the Communications Committee. I was asked to join the IYAK Board of Directors in 2017. I was appointed Treasurer by the Board in 2018.  I envision an IYAK that is cutting edge in research and business development.  I am dedicated to preserving the genetic integrity of yak in North America.


Tom Hansen

Wayfare Yaks, Joes, Colorado





Nicole Porter Salvato, PhD

Prairie Sky Ranch, Rolling Ground, Wisconsin

I live on a yak and horse ranch in South West Wisconsin with my husband Dan. I was an academic before I fell in love with yak. My area of specialization is epigenetics and epidemiology, with a doctorate from DePaul University and dissertation research at University of Chicago in the Institute of Mind and Biology, I’ve been grateful to have the opportunity to research butterflies, ungulates, bonobos, chimpanzees, gorillas, and the great cats, at Lincoln Park Zoo, Chicago Academy of Sciences, and various wildlife refuges.

Later in my research career, I studied incidence and distribution of human disease, and now I enjoy participating in IYAK research on genetic influences in yak. I am fascinated by applied science and how we can harness scientific knowledge to help in the real world - particularly for yak conservation and to support our IYAK breeders, This is why I’m an active member of the BOD, the Genome Committee and the Communication Committee. Dan and I, love to chat about yak and are always available to answer questions and provide resources.

Call me on Google Voice at: 608) 728-STAR or Email


Steve Hill

Sunny Hill Ranch, Willow, Alaska

In 2009 Anita and I teamed up with a friend and bought a 2 y/o Yak bull and three cows, by the the time we went to pick them up  3 days later there was a calf also, we were hooked and it started this journey with these amazing animals!  

I've been in Alaska for 35 years now and along the way I've been a member of the USAF, an Iron worker, a commercial fisherman, a plumber and the owner of a mechanical contracting company.  That diverse background has prepared us well for being Yak ranchers in this crazy retirement project.  While building a 320 acre ranch from scratch and trying to figure out these contrary beasts, we stumbled across the IYAK web site and made our way to Denver and the National Western Stock Show to find out how others deal with trimming hooves, and what to do with bottle babies.  iYAK has become a passion with us and we are pleased to serve.


Chris Butz

Gill’s Peir Ranch, Northport, Michigan

My wife Angie and I moved to rural northwestern Michigan in 2007 to pursue a slower, more family-focused way of life.  We have five (5) children so this lifestyle fit our family well as we also enjoy hunting, fishing and playing in the outdoors.  A serial entrepreneur, we had been interested in the farming and ranching lifestyle for years.

Gill’s Pier Ranch began in 2014 and we purchased and converted winery and tasting room for our meat market in 2015.  We run two farms on a total of 228 acres of amazing pastures fed by the rains and breezes that blow off of Lake Michigan.  Our herd averages between 100-120 yaks between our northern Michigan location and Bow Creek Ranch’s pastures in Kansas.

While we have high-quality breedstock yaks, our main business is in the amazingly sweet and healthy meat that we sell both locally and nationally.  We strive to be ecologically sensitive and to develop systems that optimize our time ranching while, at the same time, improving our yaks’ way of life. We are blessed to shepherd the most amazing animals and life couldn’t be better.  Please don’t hesitate to drop me an email with any and all questions about these great animals and the excitement that comes with running a yak ranch.


Suzanne Drumm

Bentwood Alpacas & Yaks, Tully, New York

My husband and I have raised our family of 6 children in our favorite place on earth, Tully, NY.  Sixteen years ago we built our home and decided we wanted to raise livestock. He was raised on a dairy farm and my father was a veterinarian, so animals were a part of who we were and we wanted our kids to know the value of a hard days’ work.  Our first venture was with alpacas. We did it all: breeding, vet bills, shows, seminars, trips, visits, and a lot of buying and selling. Of course there were ups and downs with mistakes and successes along the way.

Ironically because we owned alpacas we met our first yaks 4 years ago and fell in love immediately.  We traded alpaca fiber for yak meat to serve in our restaurant and it was a huge hit. That was when we decided to add yaks to our farm.  Since then, we have learned (the hard way sometimes) about the idiosyncrasies of yaks. The yak industry is full of very helpful, friendly, and experienced farmers who are willing to give advice.  Our herd has grown much faster than we originally planned. We have 40 yaks.

Being on the iyak board is an honor and I promise to do my best.  I am still learning as I go and am awed by the knowledge and dedication of the board members.  As I become more comfortable with my role, I hope to be able to contribute more.