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New to alpacas? Be sure to read our blog and our educational alpaca articles.

Northern California Alpacas

Northern California Alpacas

Colusa Riverside Alpaca Ranch is proud to offer alpacas with some of the most outstanding alpaca Expected Progeny Differences (EPD) for fiber fineness (AFD) in the nation.  Our herdsires are ranked in the top 1% of the ARI-EPDs for AFD. Our herdsires will improve fiber fineness in their offspring more than 99% of all alpacas tested by ARI. We have been working hard over the past four years to selectively breed and purchase alpacas to achieve the notable alpaca EPDs we can now offer our customers. 

Our herdsire BLUEGRASS PERUVIAN PROPHECY’S EPDs are among the most elite herdsires of our industry. Prophecy’s father, ACCOYO AMERICA APOCALYPSE "is ranked as the #1 white herdsire in the ARI-EPD program—that will produce offspring with the largest reduction of AFD while increasing the most FLEECE WEIGHT."

Bluegrass Peruvian Prophecy
Bluegrass Peruvian Prophecy

Prophecy will produce offspring with the same kinds of reduction in AFD, he will increase fleece weight, but more importantly, Prophecy will improve UNIFORMITY OF AFD across the entire fleece of his offspring. Prophecy is one of only sixty four herdsires in the nation with an EPD to produce offspring with this kind of uniformity of AFD. View our EPDs.

Expected Progeny Differences (EPD's)

EPDs will predict fiber trait outcomes in your offspring. EPDs are the gold standard of all livestock industries, EPD use in the alpaca industry will soon become the gold standard. If you buy a herdsire from us he will be in the top ranking in ARI’s EPD program. We hope you will consider EPDs and Colusa Riverside Alpacas in your breeding decision. 

EPD Details


Breeding for Industry Excellence

Colusa Riverside Alpacas continues to build a herd with unmatched personal and industry breed standards. We are committed to breeding practices to develop alpacas with superior histograms, Expected Progeny Differences, and fiber fineness longevity. Colusa Riverside Alpacas continues to contribute to the body of knowledge of the alpaca for the benefit of all owners and the industry.

Dave Scroggins is a past Board Director of California Alpaca Breeders Association. Sheila has a special interest in researching and publishing information on health and illness in the alpaca. Sheila is a contributing author for the Camelid Quarterly and Alpaca Magazine. She is a Professor of Nursing and is the Director of a Nursing Program. She invites you to visit her web library (click here) and read her publications.

We welcome all visitors to our riverside alpaca ranch in California, and we enjoy being in the family of alpaca ranchers in the North State.



Colusa California map

Colusa Riverside Alpacas
David & Sheila Scroggins
6909 Codorniz Rd.
Colusa, California 95932
Phone: 530-458-4022

Map & Directions

David and Sheila Scroggins

We at Colusa Riverside Alpacas offer educational tours of our alpaca ranch in northern California. Come, meet and learn about alpacas, bring a sack lunch and picnic with the herd. Individuals, schools, daycares, or other groups are welcome. Please contact us to arrange for a farm tour.

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