WILDLIFE DISEASES AND PARASITES 



The study of wildlife diseases, particularly in 

 migratory birds, is an important Bureau respon- 

 sibility. In lOBi, the Disease Laboratory at the 

 Patuxent Center conducted research both on birds 

 and on mammals; the Denver Center's research 

 was concerned largely with waterfowl and cen- 



tered at the Bear River Station in Utah. Both 

 participated in emergency studies of the aquatic 

 bird epizootic on Lake Michigan. 



Susceptibility of birds to type E hotulinal 

 toxin. — A dieoff of aquatic birds, primarily gulls 

 and loons, occurred on the southeastern shore of 



Graduate student.s at. Pennsylvania State Vniver-sity taking tissue samples from whitctail buck carcass for pathological, 

 physiological, and radioactive phosphorus deposition studies, (Photo by James S, Llndzey) 



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