Air , nutrition , soil and clinical materias pollution are the most important subjects that have been considered and studied around the world . fungi of many kinds , especially saprophyte fungi , play important role in causing allergy , saprophyte fungi are the reason for severe refunctions in those whom their job is seed selling , bird keeping , farmers and miller . Also , it is found on crops , skin and mucus of human . the purpose of this research was an inspection about the rate of all kind of Aspergillus in birds in farms around Urmia. It should be considered that the culture must have no cycloheximide because Aspergillus is sensitive and can ' t grow the cultures were prepared under quite strile condition and were sent to farms and the
