migration

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Inconsistencies of utilitarianism as the exclusive theory of organic evolution
John T. Gulick

American Journal of Science July 1890, s3-40 (235) 1-14; DOI: https://doi.org/10.2475/ajs.s3-40.235.1
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The distribution and migrations of North American birds
Spencer F. Baird

American Journal of Science May 1866, s2-41 (123) 337-347; DOI: https://doi.org/10.2475/ajs.s2-41.123.337
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The distribution and migrations of North American birds
Spencer F. Baird

American Journal of Science March 1866, s2-41 (122) 184-192; DOI: https://doi.org/10.2475/ajs.s2-41.122.184
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Note on the distribution of North American birds
A. E. Verrill

American Journal of Science March 1866, s2-41 (122) 249-250; DOI: https://doi.org/10.2475/ajs.s2-41.122.249
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The distribution and migration of North American birds
Spencer F. Baird

American Journal of Science January 1866, s2-41 (121) 78-90; DOI: https://doi.org/10.2475/ajs.s2-41.121.78

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