SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/bird-psittacosis-what

What causes psittacosis, an illness people can catch from birds?

The bacterium Chlamydia psittaci causes psittacosis.

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  1. A fungus on bird seed
  2. Chlamydia psittaci bacteria ✔
  3. A blood parasite

Why: Psittacosis is caused by bacteria called Chlamydia psittaci. It is a serious disease that can spread from birds to people.

Huh, didn't know that: Its nickname is parrot fever, but budgies, cockatiels and pigeons can carry it without looking sick.

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What do you call a crate of ducks? A box of quackers.
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References

Answer: Chlamydia psittaci bacteria. Psittacosis is caused by bacteria called Chlamydia psittaci. It is a serious disease that can spread from birds to people.

  1. About Psittacosis (CDC) www.cdc.gov/psittacosis/about/index.html
    Psittacosis is a disease caused by bacteria called Chlamydia psittaci.
    Checked 2026-10-11.
  2. Disorders Affecting Multiple Body Systems of Pet Birds (Merck Veterinary Manual) www.merckvetmanual.com/bird-owners/disorders-and-diseases-of-birds/disorders-affecting-multiple-body-systems-of-pet-birds
    pigeons, doves, budgies, cockatiels, cockatoos, and many others, are more resistant to infection with psittacosis and can become carriers without obvious illness.
    Checked 2026-10-11.

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