. The Audubon annual bulletin. Birds; Birds. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRK92. The Audubon annual bulletin. Birds; Birds. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRR39. The Audubon annual bulletin. Birds; Birds. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRR03. The Audubon annual bulletin. Birds; Birds. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRR57. The Audubon annual bulletin. Birds; Birds. . Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. -'!*.* VerttiUhou. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRMEK. The Audubon annual bulletin. Birds; Birds. -'!*.* VerttiUhou. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. ROBERT RIDGWAY. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRPCX. The Audubon annual bulletin. Birds; Birds. ROBERT RIDGWAY. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. CANVAS BACKS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRRB1. The Audubon annual bulletin. Birds; Birds. CANVAS BACKS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. SCAUP AND SPOON BILLS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRRAR. The Audubon annual bulletin. Birds; Birds. SCAUP AND SPOON BILLS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. 18 THE AUDUBON BULLETIN. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJPW23. The Audubon annual bulletin. Birds; Birds. 18 THE AUDUBON BULLETIN. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. 44 THE AUDUBON BULLETIN. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRK9N. The Audubon annual bulletin. Birds; Birds. 44 THE AUDUBON BULLETIN. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. Photo by G. P. Perry. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRJYG. The Audubon annual bulletin. Birds; Birds. Photo by G. P. Perry. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. "S#  &4|l * o%f%. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRN9B. The Audubon annual bulletin. Birds; Birds. "S# &4|l * o%f%. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
. The Audubon annual bulletin. Birds; Birds. "S#  &4|l * o%f%. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society
RMRJRN89. The Audubon annual bulletin. Birds; Birds. "S# &4|l * o%f%. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Illinois Audubon Society. [Chicago, Ill. ] : The Society