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Photo depicts Dewey Soper traveling with his dog team in Wood Buffalo Park, N.W.T. during the winter of 1932-1933. Photo by J. Dewey Soper is hand-tinted.

Photo depicts porcupine in a tree. Photo is hand-tinted.

Photo depicts Richardson Ground Squirrel eating from hand at Islay, Alberta.

Photo depicts Common Skunk in Ontario.

Photo depicts Gray Eastern Chipmunk.

Photo depicts White Whales at Erebus Bay, Cape Beechy, Devon Island, N.W.T. in 1923. Photo is hand-tinted.

Photo depicts "Falls of Little Buffalo River (40' high), Wood Buffalo Park, N.W.T., Canada."

Photo depicts bison stampeding in Wood Buffalo Park as R.C.A.F. plane flies overhead. Photo by R.C.A.F.

Photo depicts bison cow in spruce woods a few miles north of Peace Point, Wood Buffalo Park, Alberta.

Photo depicts herd of Northern Bison on Slave River near the 30th baseline, Wood Buffalo Park, Alberta.

Photo depicts small Bison herd on Slave River, near 30th baseline, Wood Buffalo Park, Alberta.

Photo depicts nest and eggs of the American Coot. Photo is hand-tinted.

Photo depicts bison herd on Slave River, near 30th baseline, Wood Buffalo Park, Alberta, in March, 1935.

Photo depicts scene on the Little Buffalo River above the falls near the Alberta-N.W.T. boundary in July, 1933. Photo is hand-tinted.

Photo depicts immature Herring Gull, Sirmilling Bay, Arctic Circle, Baffin Island, N.W.T.

Photo depicts Downy Franklin Gulls, Netley Lake, Manitoba.

Photo depicts Ring-billed Gulls at Sylvan Lake, Alberta.

Photo depicts flock of Common Terns at Lac la Biche, Alberta.

Photo depicts American Avocets at Middle Creek Reservoir, Saskatchewan.

Photo depicts Piping Plover at Good Spirit Lake, Saskatchewan. Photo is hand-tinted.

Photo depicts Spotted Sandpiper on nest at Guelph, Ontario.

Photo depicts American Avocets at Middle Creek Reservoir, Saskatchewan.

Photo depicts Western Grebe. Photo is hand-tinted.

Photo depicts White Pelicans on nesting island in Big Quill Lake, Saskatchewan.

Photo depicts White Pelicans at Clandeboye Bay, Lake Manitoba, Manitoba.

Photo depicts geese in flight. Photo by A. Haak is titled "On the Wing" and is captioned "Albino Lesser Snow Goose, Meadows, Man."

Photo depicts sketch of geese flying over field. Drawing by A. H. Shortt, dated 1931, is captioned "Blue and Snow Geese rising from stubble at Grant's Lake, Rosser, Manitoba. April 18, 1930. From field observations and sketches."

Photo depicts Snow Geese and Blue Geese in a field. Photo by Lorene Squire is titled "Snow Geese and Blue Geese".

Photo depicts Snow Geese and Blue Geese in a field. Photo by Lorene Squire is titled "Snow Geese and Blue Geese".

Photo depicts young Blue Goose in flight. Photo by Lorene Squire is titled "Young Blue Goose Calling".

Photo depicts Blue Goose in flight. Photo by Lorene Squire is titled "Blue goose (first year plumage)".

Photo depicts Lapland Longspur resting on rifle barrel at Bowman Bay, western Baffin Island, N.W.T. in June, 1929.

Photo depicts Hutchins' Goose, Bowman Bay, west coast of Baffin Island, N.W.T. in June, 1929.

Photo depicts immature Breat Blue Herons. Photo is hand-tinted.

Photo depicts Parasitic Jaeger on tundra at Bowman Bay, Foxe Basin, Baffin Island, N.W.T.

Photo depicts Hutchins' Goose, Bowman Bay, Foxe Basin, Baffin Island, N.W.T. in June, 1929.

Photo depicts Whistling Swan. Photo is hand-tinted.

Photo depicts Western Grebe. Photo is hand-tinted.

Photo depicts Western Grebe. Photo is hand-tinted.

Photo depicts Western Grebe. Photo is hand-tinted.