A Comprehensive Guide to Common Diseases and Ailments in Budgerigars

Budgerigars are generally healthy birds, but they are still susceptible to a range of diseases and ailments. It’s essential to be aware of the signs and symptoms of these conditions so that you can take action quickly if your bird becomes unwell. In this guide, we’ll explore some of the most common diseases and ailments that can affect budgerigars.

Common Diseases and Ailments in Budgerigars

  1. Psittacosis – This bacterial infection can cause respiratory symptoms, including coughing, sneezing, and difficulty breathing. It can also cause diarrhea and lethargy and is highly contagious, however often hidden in adult carrier birds. Becomes obvious in the breeding cabinet, where there is widespread infertility.
  2. Avian Gastric Yeast (AGY) – More commonly known as megabacteria, causes a bird to go light. Naturally, the bird chronically wastes away unless treated.
  3. Scaly Face Mite – This mite can cause crusty or scaly lesions on a bird’s face and beak. In severe cases, it can also affect the bird’s legs and feet.
  4. Feather Mites – These tiny mites can cause feather loss and irritation in birds. They are particularly common in birds that are stressed or have a weakened immune system.
  5. Egg Binding – This condition occurs when a female bird is unable to lay an egg. It can be caused by a variety of factors, including malnutrition, lack of exercise, and genetics.
  6. Coccidiosis – Caused by a protozoal parasite that invades and damages the intestines. Birds appear to hunch over, like they have a “gut ache”.
  7. Enteritis – caused by a number of different factors.
  8. French Moult – Polyomavirus is arguably the most significant virus faced by budgie enthusiasts.
  9. Sour Crop – generally triggered in high humidity conditions, this causes a pH change in the budgerigar, and often results in a blocked gizzard.
  10. Worms – Roundworms provide similar symptoms to Coccidiosis, however autopsy reveals conjested upper small intestine.
  11. Canker – caused by protozoal parasite, Trichomonas. Symptoms are similar to mega bacteria, coccidiosis and round-worm infections, however birds with Canker will normally be vomiting.
  12. Food Poisoning – accordingly, from the ingestion of food stuff contaminated with bacteria, mould, and/or their toxins.

Preventing Diseases and Ailments in Budgerigars

Diseases and AilmentsPreventing diseases and ailments in budgerigars means a couple of key steps. These include:

  • Providing a healthy and balanced diet that includes plenty of fresh fruits and veggies.
  • Regularly cleaning your bird’s cage and providing fresh water
  • Limiting your bird’s exposure to other birds, particularly those that may be sick or carrying disease
  • Seeking vet attention quickly if you notice any signs of illness or unusual behavior in your bird


While budgies are generally healthy birds, they are still susceptible to a range of diseases and ailments. By being aware of the signs and symptoms of these conditions and taking steps to prevent them, you can help ensure that your bird stays healthy and happy. Remember, if you have any concerns about your budgie’s health, it’s always best to seek vet care.