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2. Bowerman, W.W., 1991. Factors influencing breeding success of bald eagles in upper Michigan. Master of Arts thesis, Northern Michigan University, Marquette, Michigan
3. Bowerman, W.W., 1993. Regulation of bald eagle (Haliaeetus leucocephalus) productivity in the Great Lakes Basin: an ecological and toxicological approach. Ph.D. dissertation, Michigan State University, East Lansing, Michigan
4. Trends of contaminants and effects for bald eagles of the Great Lakes Basin;Bowerman;Environ. Monitoring Assessment,1998
5. A review of factors affecting productivity of bald eagles in the Great Lakes region: Implications for recovery;Bowerman;Environ. Health Perspectives,1995