Also known as pigeon breeder’s lung, this is a form of extrinsic allergic alveolitis (inflammation of the fine structures in the lungs) resulting from sensitisation to birds. In bird fanciers, skin tests sometimes show sensitisation to birds droppings, eggs, protein and serum, even through there has been no evidence of any illness.
Bird fancier’s lung is a type of allergic alveolitis, which involves inflammation of the lungs resulting from the inhalation of dust particles originating from bird droppings. This condition is also occasionally referred to as pigeon-fancier’s lung.