Abstract
IT is generally believed that, in the normal condition, there persists only a single gonad, the left ovary, in female birds. But bilateral ovaries are not uncommon in hawks and some species of other birds. The finding of such paired ovaries in European and American birds, and even in African birds, has already been recorded. So far as I know, however, very little has been recorded on the bilateral development of ovaries in Oriental birds. The following is a list of birds of prey which were collected in the Western Hills, near Peiping (Peking), China, and examined by me in October last. It may be of interest to students of embryology and comparative anatomy, as well as to those who are engaged in the study of birds.
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SHAW, TH. Double Ovaries in Some Chinese Birds of Prey. Nature 142, 1079 (1938). https://doi.org/10.1038/1421079a0
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DOI: https://doi.org/10.1038/1421079a0
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