Mallard perch
Kings Mountain National Military Park
12. Mallard perch Photograph by A.A. Allen Cornell Laboratory of Ornithology
Mallard, male
Kings Mountain National Military Park
11. Mallard Male Photograph by A.A. Allen Cornell Laboratory of Ornithology
Mallard flock, rising
Kings Mountain National Military Park
32. Mallard Flock Rising Photograph by A.A. Allen Cornell Laboratory of Ornithology
Mallard pair
Kings Mountain National Military Park
19. Pair Of Mallards Photo by A.A. Allen, Cornell University
Mallard, female
Kings Mountain National Military Park
10. Mallard Female Photograph by A.A. Allen Cornell Laboratory of Ornithology
Food Habits of the Mallard Ducks of the United States
Great Smoky Mountains National Park; National Park Service
Significance of Lead Residues in Mallard Tissues
Great Smoky Mountains National Park; National Park Service
Toxicity of Lead and Proposed Substitute Shot to Mallards
Great Smoky Mountains National Park; National Park Service
1974
Population Ecology of the Mallard--II: Breeding Habitat Conditions, Size of the Breeding Populations, and Production Indices
Great Smoky Mountains National Park; National Park Service
1974
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