Hypersensitivity Pneumonitis Following Exposure to Lovebirds.

A 54-year-old man was referred for evaluation of respiratory symptoms of cough and breathlessness of 4 years. The symptoms had a temporal relationship with keeping lovebirds (Agapornis roseicollis) as pets. His vital parameters were within normal limits. Physical examination revealed clubbing, exercise desaturation and bilateral bibasilar crackles on chest auscultation.