Alfheim-Andromeda Chihuahuas

✦ Home of Wanda · #3 Long Coat Chihuahua · Westminster BOV 2026 ✦

Where Science Meets the Soul of the Chihuahua

Health-tested champion Chihuahua puppies, bred with science.

An AKC Bronze Breeder of Merit program in central New York, raising health-tested champion Chihuahuas with forty years of evidence-based breeding behind every litter.

AKC Bronze Breeder of Merit · Bred with H.E.A.R.T. · CCA Health Committee

Wanda gaiting in the show ring
A puppy out of Mila

Wanda · Westminster BOV 2026

Wanda, Best of Variety at Westminster Kennel Club 150th, 2026

A Defining Moment for Our Program

Home of Wanda

Currently the #3 Long Coat Chihuahua in the United States. Westminster Best of Variety 2026 and Chihuahua Club of America National Best of Opposite Sex 2025.

Wanda

SGCH BISS MBOSS A & A's Phantom in the Dressing Room

#3 Long Coat Chihuahua in the United States

Westminster BOV 2026 · CCA National BOS 2025

Read Wanda's Story

A Word from Our Founder

At A & A's Chihuahuas, we believe that every generation should be healthier and more resilient than the last.

Our program is built on transparency, science, and compassion. We combine OFA and Embark testing with our proprietary BreedGuru™ system to make data-driven breeding decisions. As proud members of the AKC Bred with H.E.A.R.T. program and the Chihuahua Club of America Health Committee, we lead research into Chiari-like Malformation and Syringomyelia to improve long-term outcomes for the breed.

Our standards go far beyond what is required, covering health certifications, genetic diversity, lifelong support, and responsible breeding practices that preserve the integrity of the Chihuahua.

Rev. Tanya Stringer

M.Div., FGC · Founder

Read Our Standards

What Sets Our Program Apart

Not Like the Rest

What shapes every part of our program, from research, to the way puppies grow up, to how you bring one home.

01

Our Proprietary System

We Invented BreedGuru™

BreedGuru™ is the genetic matching system we built ourselves to make winning breeding choices. Every pairing runs through DNA results, OFA clearances, structural measurement, and pedigree analysis before any decision is made. Other programs use what they have. We use what we built.

02

Original Studies

We Don't Just Read the Research

Most breeders read the research. We run it. The program is currently leading six active research studies on the Chihuahua, including a science-based book on the origins of the breed that is pending publication. The breeding decisions you see here come from work we are doing, not work we are citing.

See Our Research →
03

Through CBSA

We Mentor Other Breeders

Tanya is the founder and dean of CBSA, the Canine Breeder Science Academy, where we mentor other breeders in evidence-based practice. Forty years of experience and current research, taught directly to the people raising the next generation of dogs. Our standards do not stay in our kennel.

Visit CBSA →
04

Health Testing

Above What CHIC Requires

We host the Canine Health Clinic twice a year, an OFA testing event open to the breeding community, and we go beyond what CHIC requires for the breed. Every breeding adult clears four OFA certifications: heart, patella, eye, and BOAS, the newly approved respiratory function evaluation for Chihuahuas. We add an advanced cardiac echocardiogram on top of that. Every puppy is Embark tested and microchipped before it leaves us.

Research & Health Clinic →
05

Beyond the Pedigree

From Wolves to Wanda

The verified pedigrees go back to the 1920s. The interesting part starts much earlier. Through Embark DNA and haplogroup analysis, we trace our lines back to the Eurasian wolves these dogs descend from, then forward again through the trade routes and migrations that carried small companion dogs alongside their humans across continents. As a Forensic Genealogist, Tanya works that deeper record the way she would build a case file: sourced, cross-referenced, documented. It is the foundation of the breed-origins book she has in progress.

An A & A Chihuahua running a performance course
06

Working & Performance

They Don't Just Sit Pretty

Our dogs work. They do professional modeling with a talent agent. They serve as therapy dogs, medical alert dogs, and performance dogs in the show ring and in the field. The structural soundness and stable temperament we breed for shows up in what these dogs go on to do.

Performance & Service Dogs →
07

Birth-to-Pickup Enrichment

Raised in Homes, Not Kennels

Our dogs live in homes. They play outside. They have couches and people and routines, the way every pet should. Our in-house enrichment and socialization program, designed by a training specialist on our team, begins at birth and continues straight through to the day a puppy goes home with their family.

An A & A Chihuahua out on a city street
08

The Buying Experience

A Concierge, Not a Waitlist

We do not run a traditional waitlist. We get to know you, and we match you with the puppy that fits your home, your lifestyle, and your goals. Each family gets a concierge experience: private video chats, a personalized match conversation, and full transparency from start to finish. We deliver in-house through our own USDA-licensed transporter, by ground or by air. Every buyer receives a private portal login to see health records, get updated photos, pay invoices, and stay connected. Each puppy goes home with a large welcome-home swag bag.

The Matching Service →
09

A Decade of Buyers

Our Family Community

Our private Facebook group has over a decade of A & A families in it, sharing almost daily. Updates, milestones, questions, photos, advice, and the occasional tiny-dog disaster story. When you bring an A & A puppy home, you walk into a community that has been running for years.

Join Our Family Group →
10

Our Promise

Lifetime Guarantee & Support

A lifetime health guarantee and lifetime support, not the first six months and a wave goodbye. Our families have us for the whole arc, from the first wag to the golden years. We answer the questions, we troubleshoot the bumps, and we celebrate the milestones. The puppy is the start, not the end.

The Spaces We Built for Them

Where They Grow Up

Every puppy moves through two rooms before they come home to you.

A & A Chihuahuas Nursery

The Nursery

The first weeks of life. Quiet, warm, climate-controlled, and never out of arm’s reach. Every puppy is monitored, weighed, and gently handled from day one.

A & A Chihuahuas Puppy Playroom with tiny agility equipment

The Playroom

At four weeks, the puppies graduate to the playroom. Tiny agility equipment, enrichment toys, and puzzles to figure out. The world opens up: new textures, new sounds, new problems to solve, and a steady stream of people. Our enrichment program runs on this floor, every day.

Tested Before Bred

The Science

Every adult in our program clears the same protocol before they are ever paired.

200+

Embark DNA Panel

Genetic conditions screened on every breeding adult.

4

OFA Clearances

Heart, patella, eye, and BOAS certified before breeding eligibility.

1920s

Pedigrees Traced

Verified lines back to the 1920s, with haplogroup analysis going further still.

Every

Adult Measured

Every dog over a year old is structurally measured. The data feeds BreedGuru.

A & A's · Research Program

Our Research Program.

Active studies. Regular health clinics. The dogs — and owners — who move the data forward.

A & A's runs breeder-led research on Chihuahua genetics, structure, history, and imaging. Participation is free and open to pet homes, show homes, and international lines. Every dog in the dataset is credited when findings publish.

  1. N° 01Breed History · GeneticsThe Chihuahua History Project
  2. N° 02Neurology · Structure · LineageCM/SM Risk Lineage Study
  3. N° 03Genetics · Structure · GaitFGF4 Leg Length Gene Study
  4. N° 04Health · Genetics · LongitudinalCopper Toxicosis / ATP7B Longitudinal Study
  5. N° 05Genetics · Variant ValidationGH1 / Proportionate Dwarfism Validation Study

Affiliations & Recognition

In Good Company

  • AKCBronze Breeder of Merit
  • ♥Bred with H.E.A.R.T.
  • CCAChihuahua Club of America Health Committee
  • ★Featured in Alphaluxe Lifestyle Webzine
  • ✓Good Dog Verified Breeder
  • DNAEmbark Tested Program
  • BCBreeder Certification Listed
  • BPBrilliant Pad Partner

Welcome Home

Begin the Journey

If you are looking for a Chihuahua raised with care, science, and four decades of devotion to this breed, we would love to hear from you.

Tanya & Cassandra

Alfheim · Andromeda · Chihuahuas