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Chlamydia Psittaci Prevalence in Over-Winter Birds vs. Migratory Birds in California

Recently, some birds of prey have been presented to the California Raptor Center, UC Davis with clinical signs associated with Chlamydia psittaci, a bacteria that can cause severe disease in birds and people.

Dr. Michelle Hawkins, Director of the California Raptor Center, in collaboration with Drs. Holly Ernest and Chris Kreuder Johnson from the One Health Institute, School of Veterinary Medicine, UC Davis and the Golden Gate Raptor Observatory and US Fish and Wildlife, are studying whether the disease is more prevalent in the over-winter populations of some raptor species in the Northern California valley, or whether the disease is also found in migratory birds passing through this region.

Dr. Hawkins is also studying the clinical and pathologic findings associated with this disease in Northern California raptors.

Contact: Michelle Hawkins at

Contact Dr. Holly Ernest at

Contact Dr. Chris Kreuder Johnson at

Visit Golden Gate Raptor Observatory at