Symptoms: Found commonly in Gouldians and Canaries air sac mite can be a very fatal disease. Scinetifcally known as Sternostoma tracheacolum this mite infects the respiratory system of the bird.
Causes: Transmission is caused by feeding cycles (Parents to young and during courtship) Common symptoms will include a cough, loss of voice and distinctive yet not normal chirp. All related to breathing air sac mite can go by undetected.
Treatment: Proper treatment involves using and insecticide to fully eradicate the mite. The average life cycle of the mite from egg to maturity is 6 days. Treatment with a spray containing ivermectin will remove the mite. Ensure you treat all birds and not just the infected.
Pet Bird Care Us magazine, Common Finch Diseases: Aries Munandi, June 2015