Outdoor birds are generally too far away to be a problem. Chickens on the other hand are usually very scruffy and allergy to chickens is uncommon.īirds visiting your garden are an unlikely cause, most problems occur from birds kept indoors or in breeders. Most good quality flying birds keep their feathers in good condition, resulting in lots of bloom. The droppings can also be a problem if they dry and are inhaled. It comes from the preen gland (also known as oil gland or uropygial gland) found under the base of the birds' tail and is spread over the feathers with the beak. The main agent that causes the allergy is the bloom on the feathers (the dust that comes off which keeps the feathers sliding nicely over each other). Breathlessness and tiredness are common symptoms, many also lose weight. It is an inflammation of the parts of the lung were oxygen is taken into the blood. In America "allergic alveolitis" is usually called "hypersensitivity pneumonitis". Allergic Alveolitis (Hypersensitivity Pneumonitis in USA)Bird fancier's lung is a type of allergic alveolitis ("alveoli" are the air sacs in the lungs and "itis" means inflamed).
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