Pine Tree Veterinary Hospital

Meet Our Staff

Dr. Bridget Ferguson


Dr. Bridget Ferguson, ABVP-Certified in Avian Practice

Dr. Ferguson completed her undergraduate degree in Avian Sciences at the University of California in Davis with a minor in Veterinary Medical Entomology and Nutritional Sciences in 1992. She graduated from the College of Veterinary Medicine & Biomedical Sciences at Colorado State University in 1997. After working in an "exotics only" clinic in San Francisco, California she obtained her Board Certification in Avian Practice in 2003.

Over the past 18 years, Dr. Ferguson has treated a wide variety of companion animals including birds, reptiles, ferrets, rabbits, rodents, and hedgehogs, in addition to cats and dogs. She enjoys consulting with local veterinarians as well as performing advanced diagnostics, treatments and surgery on exotic patients.

Dr. Ferguson has consulted with several rescue groups for non-traditional pets, including Mollywood Avian Sanctuary, Zazu's House Parrot Sanctuary, All Parrot Rescue, Hookbill Aviary, and Everlasting Hope Rescue in Washington. She has also served as the medical director for Mickaboo Companion Bird Rescue in California for the past 14 years. In addition, she consults with Traipse Bengals, a USDA-licensed Bengal cat breeder located in Snoqualmie, and Beaker's Parrot Place in Wilkeson.

In her spare time she enjoys hiking and gardening, as well as spending time with her family and menagerie of pet animals including two goats, two rabbits, a hawkhead parrot, two budgie parakeets, a blue-tongued skink, a dog, two cats, four chickens, and a salt water habitat filled with reef critters.



Tigger aka Matthew Birch

Matthew "Tigger" Birch, LVT, Licensed Wildlife Rehabilitator

Tigger, as most people know him, was born Mathew Birch. A Seattle native, he started working professionally with animals in 2000. His passion for animals started as a child visiting his grandparents' farm on Whidbey Island. By his late teens and through his early 20's he was raising rabbits, chickens, ducks, geese, and goats, as well as owning ferrets, a California gopher snake, a painted turtle, a black Labrador and several cats. In spring of 1999 he started volunteering at P.A.W.S. Wildlife Center. He enjoyed wildlife rehabilitation so much that upon being hired the following spring he spent most of 6 years there. In 2005, after working with everything from hummingbirds to eagles and opossums to black bear, he started work as a Veterinary Assistant in a mixed practice hospital and continued to work with wildlife on the side. He received both a Veterinary Technicians License and WA Wildlife Rehabilitators Permit in 2010. In addition to working as an LVT, he helped to found South Sound Critter Care Wildlife Center in 2009. He is currently working with Featherhven Native Songbird Rehabilitation in Enumclaw, as well as consulting for For Heaven Sake Wildlife Center in Rochester.

In his off time he enjoys spending time with his wife, children and his current pets, which include Jake the dog, the cats Luna Belle and Sassy, a sugar glider named Roo, Rupert the rex bunny, Happy the cockatiel, and Elva, Fiona, Thalonia, and Skeeter the chickens (known collectively as "the girls").

Kelsey Tofstad

Kelsey Tofstad, Office Manager

Animals have always been a big part of veterinary assistant Kelsey's life, as she grew up with many pets. She began working in veterinary hospitals in 2013 after completing the veterinary assistant program at Pima Medical Institute in 2012. Kelsey is planning more schooling to obtain her veterinary technician's license and she is enjoying learning more about exotic animals.

Kelsey recently gave birth to her daughter, Rowan, joining her husband Derek and step-daughter Lexie in the Tofstad family. In her rare moments of free time, she enjoys playing with her fur babies, and reading. Kelsey also enjoys hiking in the mountains, riding her four wheeler in the dunes, throwing a mean game of darts, and playing softball, something she has done competitively for sixteen years.

She is an expert on all things related to Harry Potter, both books and movies, and has aspirations of becoming a wine connoisseur.

Cassandra Winter

Cassandra Winter, Receptionist

It's safe to say that Cassandra is animal crazy. She grew up on a small horse farm in Maple Valley with her family and started riding horses when she was 7. Throughout her youth she competed very successfully in Equestrian sports, both locally and on the national level.

Because of her interest in animals, she chose to pursue a Bachelor's degree in Biology at Pacific Lutheran University. She then went on to work at several area veterinary clinics before joining the staff at Pine Tree Veterinary Hospital.

Over the years Cas has had a number of amazing animal experiences: she's ridden a horse valued at a worth exceeding most cars, swam with dolphins, hugged an orca, trained an ibis, kissed a sea lion, held a small shark, and scuba dived with a legendary Puget Sound giant pacific octopus!! As if that weren't enough animal adventure for any one person, she has also fed a baby bengal tiger, held a 150 pound anaconda snake, and released endangered baby sea turtles off the beaches of Mazatlán into the Pacific Ocean.

Cas and her husband Brandon keep and breed several species of snakes including pythons, boas, and rat snakes, as well as their two pet dogs and a cat.

Chelsey Sutton

Chelsey Sutton, Vet Assistant

Chelsey Sutton has been around animals her whole life. She devotes a great deal of her time to taking care of all types of pet companions. She currently owns nine snakes, about twenty geckos, a salt water tank full of fish, and two wonderful dogs. Chelsey would love to continue her education at the University of Washington, at the Bothell campus, to obtain a bachelors degree in biology, then later go to vet school to major in exotics. Her dream is to one day open her own animal hospital, so she may take care of any type of animal in need of medical attention.

In her spare time, Chelsey loves to spend time with her friends, family and her animals. She also enjoys taking her dogs for walks around Lake Washington with her boyfriend. And she gravitates toward being outdoors, especially if it involves camping, hiking, or white water rafting.

Bonnie Forbes

Bonnie Forbes, Receptionist

Bonnie Forbes grew up on a farm in upstate New York. Her childhood was spent tending to a menagerie of animals, including cows, sheep, horses, chickens, ducks, dogs, and over 30 cats and nearly 40 pygmy goats, so it's only natural that she has gravitated toward the animal health care profession. After graduating from high school in Ashland, Oregon, Bonnie headed to Washington State, where she now calls Pine Tree home.

Bonnie is a newlywed and she and husband Brad like spending time with their two cats, a blue point Siamese named Cash and an ancient Calico named Roxie, as well as hiking and camping in the woods. When time allows, Bonnie plays guitar and saxophone, and is an aspiring singer-songwriter.