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William S. Clark, Ph.D
Published in Botanical Gazette, in 1886, in volume 11, issue 7, pages 181-182
Created: 2017-03-14, modified: 2017-03-14
Ground-nesting Ospreys in Utah
Published in Journal of Raptor Research, in 2001, in volume 35, issue 3, pages 257-258
Created: 2017-04-07, modified: 2017-04-07
Butterflies from Virginia
Published in Proceedings of The Biological Society of Washington, in 1939, in volume 52, pages 177-183
Created: 2011-07-31, modified: 2011-07-31
Notes on Virginia butterflies
Published in Proceedings of The Biological Society of Washington, in 1938, in volume 51, pages 177-181
Created: 2011-07-31, modified: 2011-07-31
Avian Bill-Wiping
Published in The Wilson Bulletin, in 1970, in volume 82, issue 3, pages 279-288
Created: 2017-02-19, modified: 2017-02-19
Toe Fusion in Oscines
Published in The Wilson Bulletin, in 1981, in volume 93, issue 1, pages 67-76
Created: 2016-12-04, modified: 2016-12-04
Oral Flanges of Juvenile Birds
Published in The Wilson Bulletin, in 1969, in volume 81, issue 3, pages 270-279
Created: 2017-08-22, modified: 2017-08-22