[Disseminated aspergillosis in a loon].

A case is described of generalized mycosis in a diver of the species Gavia arctica, caused by the fungus Aspergillus fumigatus. The organism of the bird was so much damaged that the bird died. There is a detailed description of the mycological characteristics of the invading agent and a description of the histopathological changes in the primarily affected organ -- the lungs. Further, a survey is presented of the orders of freely living birds and birds in captivity in which aspergillosis has been detected.