Environmental Pollution · 1996 · 53 citations · 21 references
Veterinary MedicineEnvironmental SciencesToxicologyEnvironmental ToxicologyMarine ToxicologyWildlife ToxicologyMarine PollutionMarine Wildlife ToxicologyWildlife Exposure PathwaysEnvironmental Contaminant MonitoringOrganochlorine CompoundsOrganochlorine PesticidesOrganochlorine Residues
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The Ducks, Geese, and Swans of North America
Paul M. Scheffer, Francis H. Kortright · The Murrelet · 1943 · 1.2K citations
Ducks, Geese and Swans of North America
Matthew C. Perry, Frank C. Bellrose · Journal of Wildlife Management · 1977 · 462 citations
Eggshell changes in certain North American birds
D. W. Anderson, Joseph J. Hickey · 1972 · 211 citations
J. Murray, R. C. SHEARER, Sl. Han · Time to knit · 2000 · 182 citations