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Doctor Thomas Sadler Roberts
Dodo, facsimile of Piso's figure, illustration from Alfred Newton, "Dictionary of Birds"
Dodo, illustration from "Birds of the World"
Dogtooth violet
Doll wedding
Doll wedding
Double-crested Cormorant
Double-crested Cormorant and nests in tree top
Double-crested Cormorant flock on water
Double-crested Cormorant, group of nests on Gull Rock
Double-crested Cormorant, nest and birds in tree top
Double-crested Cormorant nest and young
Double-crested Cormorant nest and young
Double-crested Cormorant nests
Double-crested Cormorant, nests in tree tops
Double-crested Cormorant, nests in tree tops
Double-crested Cormorant, nests in tree tops
Double-crested Cormorants nests
Double-crested Cormorants, young on nesting ground
Double-crested Cormorant, young in nest on Gull Rock
Douglas Lodge at Itasca Park
Downy Woodpecker
Downy Woodpecker on stump
Downy Woodpecker, six juveniles on stump
Downy Woodpecker, six juveniles on stump
Downy Woodpecker, six juveniles on stump
Downy Woodpecker, six juveniles on stump
Downy Woodpecker, six juveniles on stump
Downy Woodpecker's Nest
Dragon fly, large
Dragon fly, larger
Dragon fly, small
Drainage, typical shallow lake in Nebraska sand hills, image of a mounted print photograph
Dr. Allen at camp
Dr. and Mrs. R.G. Green, Mrs. Breckenridge, Dr. Allen, and Harold Erlendson
Dr. and Mrs. Thomas Sadler Roberts at Frank W. Commons' bungalow
Dr. Boroman
Dr. Dudley, Mrs. Roberts, and Miss Hillis at Lake Minnetonka
Dr. Dudley, Mrs. Roberts, and Miss Hillis at Lake Minnetonka
Dr. Dudley, Tom, Carroll, and Catherine
Dr. Green and Mr. Wynne
Dr. Green on Moose Lake
Dr. Thomas Sadler Roberts on a porch
Duck foods, coontail, illustration
Duck Hawk at nest
Duck Hawk at nest
Duck hawk cliff
Duck hawk cliff projecting into Lake Superior, North Shore
Duck hawk cliff projecting into Lake Superior, North Shore
Duck hawk cliff, three young hiding under rock vegetation