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Two female patients aged 53 and 44 years were admitted to hospital with back pain, chronic cough and malaise. Both patients had radiological findings of interstitial lung disease and both had a history of exposure to budgerigar antigens for a number of years. Pathological examination of their lung tissues Were compatible with hypersensitivity pneumonitis (HP). Based on these findings, a diagnosis of “Bird Fanciers’ Lung” (BFL) was made in these two patients. Since breeding birds at home is quite frequent in Turkey, it is important to be aware of health problems which may arise from this type of hobby.